163990000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:105

約数の個数: 150

約数和(自身を含む): 428437856

約数和(自身を除く): 264447856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 31, 40, 46, 50, 62, 80, 92, 100, 115, 124, 125, 155, 184, 200, 230, 248, 250, 310, 368, 400, 460, 496, 500, 529, 575, 620, 625, 713, 775, 920, 1000, 1058, 1150, 1240, 1250, 1426, 1550, 1840, 2000, 2116, 2300, 2480, 2500, 2645, 2852, 2875, 3100, 3565, 3875, 4232, 4600, 5000, 5290, 5704, 5750, 6200, 7130, 7750, 8464, 9200, 10000, 10580, 11408, 11500, 12400, 13225, 14260, 14375, 15500, 16399, 17825, 19375, 21160, 23000, 26450, 28520, 28750, 31000, 32798, 35650, 38750, 42320, 46000, 52900, 57040, 57500, 62000, 65596, 66125, 71300, 77500, 81995, 89125, 105800, 115000, 131192, 132250, 142600, 155000, 163990, 178250, 211600, 230000, 262384, 264500, 285200, 310000, 327980, 330625, 356500, 409975, 445625, 529000, 655960, 661250, 713000, 819950, 891250, 1058000, 1311920, 1322500, 1426000, 1639900, 1782500, 2049875, 2645000, 3279800, 3565000, 4099750, 5290000, 6559600, 7130000, 8199500, 10249375, 16399000, 20498750, 32798000, 40997500, 81995000, 163990000]

約数ペア:

[(1, 163990000), (2, 81995000), (4, 40997500), (5, 32798000), (8, 20498750), (10, 16399000), (16, 10249375), (20, 8199500), (23, 7130000), (25, 6559600), (31, 5290000), (40, 4099750), (46, 3565000), (50, 3279800), (62, 2645000), (80, 2049875), (92, 1782500), (100, 1639900), (115, 1426000), (124, 1322500), (125, 1311920), (155, 1058000), (184, 891250), (200, 819950), (230, 713000), (248, 661250), (250, 655960), (310, 529000), (368, 445625), (400, 409975), (460, 356500), (496, 330625), (500, 327980), (529, 310000), (575, 285200), (620, 264500), (625, 262384), (713, 230000), (775, 211600), (920, 178250), (1000, 163990), (1058, 155000), (1150, 142600), (1240, 132250), (1250, 131192), (1426, 115000), (1550, 105800), (1840, 89125), (2000, 81995), (2116, 77500), (2300, 71300), (2480, 66125), (2500, 65596), (2645, 62000), (2852, 57500), (2875, 57040), (3100, 52900), (3565, 46000), (3875, 42320), (4232, 38750), (4600, 35650), (5000, 32798), (5290, 31000), (5704, 28750), (5750, 28520), (6200, 26450), (7130, 23000), (7750, 21160), (8464, 19375), (9200, 17825), (10000, 16399), (10580, 15500), (11408, 14375), (11500, 14260), (12400, 13225)]