81480750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 224235648

約数和(自身を除く): 142754898

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 61, 65, 75, 78, 122, 125, 130, 137, 150, 183, 195, 250, 274, 305, 325, 366, 375, 390, 411, 610, 650, 685, 750, 793, 822, 915, 975, 1370, 1525, 1586, 1625, 1781, 1830, 1950, 2055, 2379, 3050, 3250, 3425, 3562, 3965, 4110, 4575, 4758, 4875, 5343, 6850, 7625, 7930, 8357, 8905, 9150, 9750, 10275, 10686, 11895, 15250, 16714, 17125, 17810, 19825, 20550, 22875, 23790, 25071, 26715, 34250, 39650, 41785, 44525, 45750, 50142, 51375, 53430, 59475, 83570, 89050, 99125, 102750, 108641, 118950, 125355, 133575, 198250, 208925, 217282, 222625, 250710, 267150, 297375, 325923, 417850, 445250, 543205, 594750, 626775, 651846, 667875, 1044625, 1086410, 1253550, 1335750, 1629615, 2089250, 2716025, 3133875, 3259230, 5432050, 6267750, 8148075, 13580125, 16296150, 27160250, 40740375, 81480750]

約数ペア:

[(1, 81480750), (2, 40740375), (3, 27160250), (5, 16296150), (6, 13580125), (10, 8148075), (13, 6267750), (15, 5432050), (25, 3259230), (26, 3133875), (30, 2716025), (39, 2089250), (50, 1629615), (61, 1335750), (65, 1253550), (75, 1086410), (78, 1044625), (122, 667875), (125, 651846), (130, 626775), (137, 594750), (150, 543205), (183, 445250), (195, 417850), (250, 325923), (274, 297375), (305, 267150), (325, 250710), (366, 222625), (375, 217282), (390, 208925), (411, 198250), (610, 133575), (650, 125355), (685, 118950), (750, 108641), (793, 102750), (822, 99125), (915, 89050), (975, 83570), (1370, 59475), (1525, 53430), (1586, 51375), (1625, 50142), (1781, 45750), (1830, 44525), (1950, 41785), (2055, 39650), (2379, 34250), (3050, 26715), (3250, 25071), (3425, 23790), (3562, 22875), (3965, 20550), (4110, 19825), (4575, 17810), (4758, 17125), (4875, 16714), (5343, 15250), (6850, 11895), (7625, 10686), (7930, 10275), (8357, 9750), (8905, 9150)]