82856800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 225735552

約数和(自身を除く): 142878752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 257, 260, 310, 325, 400, 403, 416, 496, 514, 520, 620, 650, 775, 800, 806, 992, 1028, 1040, 1240, 1285, 1300, 1550, 1612, 2015, 2056, 2080, 2480, 2570, 2600, 3100, 3224, 3341, 4030, 4112, 4960, 5140, 5200, 6200, 6425, 6448, 6682, 7967, 8060, 8224, 10075, 10280, 10400, 12400, 12850, 12896, 13364, 15934, 16120, 16705, 20150, 20560, 24800, 25700, 26728, 31868, 32240, 33410, 39835, 40300, 41120, 51400, 53456, 63736, 64480, 66820, 79670, 80600, 83525, 102800, 103571, 106912, 127472, 133640, 159340, 161200, 167050, 199175, 205600, 207142, 254944, 267280, 318680, 322400, 334100, 398350, 414284, 517855, 534560, 637360, 668200, 796700, 828568, 1035710, 1274720, 1336400, 1593400, 1657136, 2071420, 2589275, 2672800, 3186800, 3314272, 4142840, 5178550, 6373600, 8285680, 10357100, 16571360, 20714200, 41428400, 82856800]

約数ペア:

[(1, 82856800), (2, 41428400), (4, 20714200), (5, 16571360), (8, 10357100), (10, 8285680), (13, 6373600), (16, 5178550), (20, 4142840), (25, 3314272), (26, 3186800), (31, 2672800), (32, 2589275), (40, 2071420), (50, 1657136), (52, 1593400), (62, 1336400), (65, 1274720), (80, 1035710), (100, 828568), (104, 796700), (124, 668200), (130, 637360), (155, 534560), (160, 517855), (200, 414284), (208, 398350), (248, 334100), (257, 322400), (260, 318680), (310, 267280), (325, 254944), (400, 207142), (403, 205600), (416, 199175), (496, 167050), (514, 161200), (520, 159340), (620, 133640), (650, 127472), (775, 106912), (800, 103571), (806, 102800), (992, 83525), (1028, 80600), (1040, 79670), (1240, 66820), (1285, 64480), (1300, 63736), (1550, 53456), (1612, 51400), (2015, 41120), (2056, 40300), (2080, 39835), (2480, 33410), (2570, 32240), (2600, 31868), (3100, 26728), (3224, 25700), (3341, 24800), (4030, 20560), (4112, 20150), (4960, 16705), (5140, 16120), (5200, 15934), (6200, 13364), (6425, 12896), (6448, 12850), (6682, 12400), (7967, 10400), (8060, 10280), (8224, 10075)]