388640800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{15671}}^1$

素因数の和:15722

約数の個数: 72

約数和(自身を含む): 979437312

約数和(自身を除く): 590796512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 992, 1240, 1550, 2480, 3100, 4960, 6200, 12400, 15671, 24800, 31342, 62684, 78355, 125368, 156710, 250736, 313420, 391775, 485801, 501472, 626840, 783550, 971602, 1253680, 1567100, 1943204, 2429005, 2507360, 3134200, 3886408, 4858010, 6268400, 7772816, 9716020, 12145025, 12536800, 15545632, 19432040, 24290050, 38864080, 48580100, 77728160, 97160200, 194320400, 388640800]

約数ペア:

[(1, 388640800), (2, 194320400), (4, 97160200), (5, 77728160), (8, 48580100), (10, 38864080), (16, 24290050), (20, 19432040), (25, 15545632), (31, 12536800), (32, 12145025), (40, 9716020), (50, 7772816), (62, 6268400), (80, 4858010), (100, 3886408), (124, 3134200), (155, 2507360), (160, 2429005), (200, 1943204), (248, 1567100), (310, 1253680), (400, 971602), (496, 783550), (620, 626840), (775, 501472), (800, 485801), (992, 391775), (1240, 313420), (1550, 250736), (2480, 156710), (3100, 125368), (4960, 78355), (6200, 62684), (12400, 31342), (15671, 24800)]