19779480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:238

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 55699560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 56, 60, 63, 70, 72, 84, 90, 94, 105, 120, 126, 140, 141, 167, 168, 180, 188, 210, 235, 252, 280, 282, 315, 329, 334, 360, 376, 420, 423, 470, 501, 504, 564, 630, 658, 668, 705, 835, 840, 846, 940, 987, 1002, 1128, 1169, 1260, 1316, 1336, 1410, 1503, 1645, 1670, 1692, 1880, 1974, 2004, 2115, 2338, 2505, 2520, 2632, 2820, 2961, 3006, 3290, 3340, 3384, 3507, 3948, 4008, 4230, 4676, 4935, 5010, 5640, 5845, 5922, 6012, 6580, 6680, 7014, 7515, 7849, 7896, 8460, 9352, 9870, 10020, 10521, 11690, 11844, 12024, 13160, 14028, 14805, 15030, 15698, 16920, 17535, 19740, 20040, 21042, 23380, 23547, 23688, 28056, 29610, 30060, 31396, 35070, 39245, 39480, 42084, 46760, 47094, 52605, 54943, 59220, 60120, 62792, 70140, 70641, 78490, 84168, 94188, 105210, 109886, 117735, 118440, 140280, 141282, 156980, 164829, 188376, 210420, 219772, 235470, 274715, 282564, 313960, 329658, 353205, 420840, 439544, 470940, 494487, 549430, 565128, 659316, 706410, 824145, 941880, 988974, 1098860, 1318632, 1412820, 1648290, 1977948, 2197720, 2472435, 2825640, 3296580, 3955896, 4944870, 6593160, 9889740, 19779480]

約数ペア:

[(1, 19779480), (2, 9889740), (3, 6593160), (4, 4944870), (5, 3955896), (6, 3296580), (7, 2825640), (8, 2472435), (9, 2197720), (10, 1977948), (12, 1648290), (14, 1412820), (15, 1318632), (18, 1098860), (20, 988974), (21, 941880), (24, 824145), (28, 706410), (30, 659316), (35, 565128), (36, 549430), (40, 494487), (42, 470940), (45, 439544), (47, 420840), (56, 353205), (60, 329658), (63, 313960), (70, 282564), (72, 274715), (84, 235470), (90, 219772), (94, 210420), (105, 188376), (120, 164829), (126, 156980), (140, 141282), (141, 140280), (167, 118440), (168, 117735), (180, 109886), (188, 105210), (210, 94188), (235, 84168), (252, 78490), (280, 70641), (282, 70140), (315, 62792), (329, 60120), (334, 59220), (360, 54943), (376, 52605), (420, 47094), (423, 46760), (470, 42084), (501, 39480), (504, 39245), (564, 35070), (630, 31396), (658, 30060), (668, 29610), (705, 28056), (835, 23688), (840, 23547), (846, 23380), (940, 21042), (987, 20040), (1002, 19740), (1128, 17535), (1169, 16920), (1260, 15698), (1316, 15030), (1336, 14805), (1410, 14028), (1503, 13160), (1645, 12024), (1670, 11844), (1692, 11690), (1880, 10521), (1974, 10020), (2004, 9870), (2115, 9352), (2338, 8460), (2505, 7896), (2520, 7849), (2632, 7515), (2820, 7014), (2961, 6680), (3006, 6580), (3290, 6012), (3340, 5922), (3384, 5845), (3507, 5640), (3948, 5010), (4008, 4935), (4230, 4676)]