215321680

素因数分解:

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

素因数の和:119

約数の個数: 200

約数和(自身を含む): 625183200

約数和(自身を除く): 409861520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 59, 70, 76, 80, 95, 98, 112, 118, 133, 140, 152, 190, 196, 236, 245, 266, 280, 295, 304, 343, 380, 392, 413, 472, 490, 532, 560, 590, 665, 686, 760, 784, 826, 931, 944, 980, 1064, 1121, 1180, 1330, 1372, 1520, 1652, 1715, 1862, 1960, 2065, 2128, 2242, 2360, 2401, 2660, 2744, 2891, 3304, 3430, 3724, 3920, 4130, 4484, 4655, 4720, 4802, 5320, 5488, 5605, 5782, 6517, 6608, 6860, 7448, 7847, 8260, 8968, 9310, 9604, 10640, 11210, 11564, 12005, 13034, 13720, 14455, 14896, 15694, 16520, 17936, 18620, 19208, 20237, 22420, 23128, 24010, 26068, 27440, 28910, 31388, 32585, 33040, 37240, 38416, 39235, 40474, 44840, 45619, 46256, 48020, 52136, 54929, 57820, 62776, 65170, 74480, 78470, 80948, 89680, 91238, 96040, 101185, 104272, 109858, 115640, 125552, 130340, 141659, 156940, 161896, 182476, 192080, 202370, 219716, 228095, 231280, 260680, 274645, 283318, 313880, 323792, 364952, 384503, 404740, 439432, 456190, 521360, 549290, 566636, 627760, 708295, 729904, 769006, 809480, 878864, 912380, 1098580, 1133272, 1416590, 1538012, 1618960, 1824760, 1922515, 2197160, 2266544, 2691521, 2833180, 3076024, 3649520, 3845030, 4394320, 5383042, 5666360, 6152048, 7690060, 10766084, 11332720, 13457605, 15380120, 21532168, 26915210, 30760240, 43064336, 53830420, 107660840, 215321680]

約数ペア:

[(1, 215321680), (2, 107660840), (4, 53830420), (5, 43064336), (7, 30760240), (8, 26915210), (10, 21532168), (14, 15380120), (16, 13457605), (19, 11332720), (20, 10766084), (28, 7690060), (35, 6152048), (38, 5666360), (40, 5383042), (49, 4394320), (56, 3845030), (59, 3649520), (70, 3076024), (76, 2833180), (80, 2691521), (95, 2266544), (98, 2197160), (112, 1922515), (118, 1824760), (133, 1618960), (140, 1538012), (152, 1416590), (190, 1133272), (196, 1098580), (236, 912380), (245, 878864), (266, 809480), (280, 769006), (295, 729904), (304, 708295), (343, 627760), (380, 566636), (392, 549290), (413, 521360), (472, 456190), (490, 439432), (532, 404740), (560, 384503), (590, 364952), (665, 323792), (686, 313880), (760, 283318), (784, 274645), (826, 260680), (931, 231280), (944, 228095), (980, 219716), (1064, 202370), (1121, 192080), (1180, 182476), (1330, 161896), (1372, 156940), (1520, 141659), (1652, 130340), (1715, 125552), (1862, 115640), (1960, 109858), (2065, 104272), (2128, 101185), (2242, 96040), (2360, 91238), (2401, 89680), (2660, 80948), (2744, 78470), (2891, 74480), (3304, 65170), (3430, 62776), (3724, 57820), (3920, 54929), (4130, 52136), (4484, 48020), (4655, 46256), (4720, 45619), (4802, 44840), (5320, 40474), (5488, 39235), (5605, 38416), (5782, 37240), (6517, 33040), (6608, 32585), (6860, 31388), (7448, 28910), (7847, 27440), (8260, 26068), (8968, 24010), (9310, 23128), (9604, 22420), (10640, 20237), (11210, 19208), (11564, 18620), (12005, 17936), (13034, 16520), (13720, 15694), (14455, 14896)]