19031880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:323

約数の個数: 128

約数和(自身を含む): 66124800

約数和(自身を除く): 47092920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 163, 168, 210, 278, 280, 326, 417, 420, 489, 556, 652, 695, 815, 834, 840, 973, 978, 1112, 1141, 1304, 1390, 1630, 1668, 1946, 1956, 2085, 2282, 2445, 2780, 2919, 3260, 3336, 3423, 3892, 3912, 4170, 4564, 4865, 4890, 5560, 5705, 5838, 6520, 6846, 7784, 8340, 9128, 9730, 9780, 11410, 11676, 13692, 14595, 16680, 17115, 19460, 19560, 22657, 22820, 23352, 27384, 29190, 34230, 38920, 45314, 45640, 58380, 67971, 68460, 90628, 113285, 116760, 135942, 136920, 158599, 181256, 226570, 271884, 317198, 339855, 453140, 475797, 543768, 634396, 679710, 792995, 906280, 951594, 1268792, 1359420, 1585990, 1903188, 2378985, 2718840, 3171980, 3806376, 4757970, 6343960, 9515940, 19031880]

約数ペア:

[(1, 19031880), (2, 9515940), (3, 6343960), (4, 4757970), (5, 3806376), (6, 3171980), (7, 2718840), (8, 2378985), (10, 1903188), (12, 1585990), (14, 1359420), (15, 1268792), (20, 951594), (21, 906280), (24, 792995), (28, 679710), (30, 634396), (35, 543768), (40, 475797), (42, 453140), (56, 339855), (60, 317198), (70, 271884), (84, 226570), (105, 181256), (120, 158599), (139, 136920), (140, 135942), (163, 116760), (168, 113285), (210, 90628), (278, 68460), (280, 67971), (326, 58380), (417, 45640), (420, 45314), (489, 38920), (556, 34230), (652, 29190), (695, 27384), (815, 23352), (834, 22820), (840, 22657), (973, 19560), (978, 19460), (1112, 17115), (1141, 16680), (1304, 14595), (1390, 13692), (1630, 11676), (1668, 11410), (1946, 9780), (1956, 9730), (2085, 9128), (2282, 8340), (2445, 7784), (2780, 6846), (2919, 6520), (3260, 5838), (3336, 5705), (3423, 5560), (3892, 4890), (3912, 4865), (4170, 4564)]