161491260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 564681600

約数和(自身を除く): 403190340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 59, 60, 70, 76, 84, 95, 98, 105, 114, 118, 133, 140, 147, 177, 190, 196, 210, 228, 236, 245, 266, 285, 294, 295, 343, 354, 380, 399, 413, 420, 490, 532, 570, 588, 590, 665, 686, 708, 735, 798, 826, 885, 931, 980, 1029, 1121, 1140, 1180, 1239, 1330, 1372, 1470, 1596, 1652, 1715, 1770, 1862, 1995, 2058, 2065, 2242, 2401, 2478, 2660, 2793, 2891, 2940, 3363, 3430, 3540, 3724, 3990, 4116, 4130, 4484, 4655, 4802, 4956, 5145, 5586, 5605, 5782, 6195, 6517, 6726, 6860, 7203, 7847, 7980, 8260, 8673, 9310, 9604, 10290, 11172, 11210, 11564, 12005, 12390, 13034, 13452, 13965, 14406, 14455, 15694, 16815, 17346, 18620, 19551, 20237, 20580, 22420, 23541, 24010, 24780, 26068, 27930, 28812, 28910, 31388, 32585, 33630, 34692, 36015, 39102, 39235, 40474, 43365, 45619, 47082, 48020, 54929, 55860, 57820, 60711, 65170, 67260, 72030, 78204, 78470, 80948, 86730, 91238, 94164, 97755, 101185, 109858, 117705, 121422, 130340, 136857, 141659, 144060, 156940, 164787, 173460, 182476, 195510, 202370, 219716, 228095, 235410, 242844, 273714, 274645, 283318, 303555, 329574, 384503, 391020, 404740, 424977, 456190, 470820, 547428, 549290, 566636, 607110, 659148, 684285, 708295, 769006, 823935, 849954, 912380, 1098580, 1153509, 1214220, 1368570, 1416590, 1538012, 1647870, 1699908, 1922515, 2124885, 2307018, 2691521, 2737140, 2833180, 3295740, 3845030, 4249770, 4614036, 5383042, 5767545, 7690060, 8074563, 8499540, 10766084, 11535090, 13457605, 16149126, 23070180, 26915210, 32298252, 40372815, 53830420, 80745630, 161491260]

約数ペア:

[(1, 161491260), (2, 80745630), (3, 53830420), (4, 40372815), (5, 32298252), (6, 26915210), (7, 23070180), (10, 16149126), (12, 13457605), (14, 11535090), (15, 10766084), (19, 8499540), (20, 8074563), (21, 7690060), (28, 5767545), (30, 5383042), (35, 4614036), (38, 4249770), (42, 3845030), (49, 3295740), (57, 2833180), (59, 2737140), (60, 2691521), (70, 2307018), (76, 2124885), (84, 1922515), (95, 1699908), (98, 1647870), (105, 1538012), (114, 1416590), (118, 1368570), (133, 1214220), (140, 1153509), (147, 1098580), (177, 912380), (190, 849954), (196, 823935), (210, 769006), (228, 708295), (236, 684285), (245, 659148), (266, 607110), (285, 566636), (294, 549290), (295, 547428), (343, 470820), (354, 456190), (380, 424977), (399, 404740), (413, 391020), (420, 384503), (490, 329574), (532, 303555), (570, 283318), (588, 274645), (590, 273714), (665, 242844), (686, 235410), (708, 228095), (735, 219716), (798, 202370), (826, 195510), (885, 182476), (931, 173460), (980, 164787), (1029, 156940), (1121, 144060), (1140, 141659), (1180, 136857), (1239, 130340), (1330, 121422), (1372, 117705), (1470, 109858), (1596, 101185), (1652, 97755), (1715, 94164), (1770, 91238), (1862, 86730), (1995, 80948), (2058, 78470), (2065, 78204), (2242, 72030), (2401, 67260), (2478, 65170), (2660, 60711), (2793, 57820), (2891, 55860), (2940, 54929), (3363, 48020), (3430, 47082), (3540, 45619), (3724, 43365), (3990, 40474), (4116, 39235), (4130, 39102), (4484, 36015), (4655, 34692), (4802, 33630), (4956, 32585), (5145, 31388), (5586, 28910), (5605, 28812), (5782, 27930), (6195, 26068), (6517, 24780), (6726, 24010), (6860, 23541), (7203, 22420), (7847, 20580), (7980, 20237), (8260, 19551), (8673, 18620), (9310, 17346), (9604, 16815), (10290, 15694), (11172, 14455), (11210, 14406), (11564, 13965), (12005, 13452), (12390, 13034)]