81619440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2557}}^1$

素因数の和:2599

約数の個数: 160

約数和(自身を含む): 304504320

約数和(自身を除く): 222884880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2557, 2660, 3192, 3990, 4560, 5114, 5320, 6384, 7671, 7980, 10228, 10640, 12785, 15342, 15960, 17899, 20456, 25570, 30684, 31920, 35798, 38355, 40912, 48583, 51140, 53697, 61368, 71596, 76710, 89495, 97166, 102280, 107394, 122736, 143192, 145749, 153420, 178990, 194332, 204560, 214788, 242915, 268485, 286384, 291498, 306840, 340081, 357980, 388664, 429576, 485830, 536970, 582996, 613680, 680162, 715960, 728745, 777328, 859152, 971660, 1020243, 1073940, 1165992, 1360324, 1431920, 1457490, 1700405, 1943320, 2040486, 2147880, 2331984, 2720648, 2914980, 3400810, 3886640, 4080972, 4295760, 5101215, 5441296, 5829960, 6801620, 8161944, 10202430, 11659920, 13603240, 16323888, 20404860, 27206480, 40809720, 81619440]

約数ペア:

[(1, 81619440), (2, 40809720), (3, 27206480), (4, 20404860), (5, 16323888), (6, 13603240), (7, 11659920), (8, 10202430), (10, 8161944), (12, 6801620), (14, 5829960), (15, 5441296), (16, 5101215), (19, 4295760), (20, 4080972), (21, 3886640), (24, 3400810), (28, 2914980), (30, 2720648), (35, 2331984), (38, 2147880), (40, 2040486), (42, 1943320), (48, 1700405), (56, 1457490), (57, 1431920), (60, 1360324), (70, 1165992), (76, 1073940), (80, 1020243), (84, 971660), (95, 859152), (105, 777328), (112, 728745), (114, 715960), (120, 680162), (133, 613680), (140, 582996), (152, 536970), (168, 485830), (190, 429576), (210, 388664), (228, 357980), (240, 340081), (266, 306840), (280, 291498), (285, 286384), (304, 268485), (336, 242915), (380, 214788), (399, 204560), (420, 194332), (456, 178990), (532, 153420), (560, 145749), (570, 143192), (665, 122736), (760, 107394), (798, 102280), (840, 97166), (912, 89495), (1064, 76710), (1140, 71596), (1330, 61368), (1520, 53697), (1596, 51140), (1680, 48583), (1995, 40912), (2128, 38355), (2280, 35798), (2557, 31920), (2660, 30684), (3192, 25570), (3990, 20456), (4560, 17899), (5114, 15960), (5320, 15342), (6384, 12785), (7671, 10640), (7980, 10228)]