31272800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 85744512

約数和(自身を除く): 54471712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 97, 100, 104, 124, 130, 155, 160, 194, 200, 208, 248, 260, 310, 325, 388, 400, 403, 416, 485, 496, 520, 620, 650, 775, 776, 800, 806, 970, 992, 1040, 1240, 1261, 1300, 1550, 1552, 1612, 1940, 2015, 2080, 2425, 2480, 2522, 2600, 3007, 3100, 3104, 3224, 3880, 4030, 4850, 4960, 5044, 5200, 6014, 6200, 6305, 6448, 7760, 8060, 9700, 10075, 10088, 10400, 12028, 12400, 12610, 12896, 15035, 15520, 16120, 19400, 20150, 20176, 24056, 24800, 25220, 30070, 31525, 32240, 38800, 39091, 40300, 40352, 48112, 50440, 60140, 63050, 64480, 75175, 77600, 78182, 80600, 96224, 100880, 120280, 126100, 150350, 156364, 161200, 195455, 201760, 240560, 252200, 300700, 312728, 322400, 390910, 481120, 504400, 601400, 625456, 781820, 977275, 1008800, 1202800, 1250912, 1563640, 1954550, 2405600, 3127280, 3909100, 6254560, 7818200, 15636400, 31272800]

約数ペア:

[(1, 31272800), (2, 15636400), (4, 7818200), (5, 6254560), (8, 3909100), (10, 3127280), (13, 2405600), (16, 1954550), (20, 1563640), (25, 1250912), (26, 1202800), (31, 1008800), (32, 977275), (40, 781820), (50, 625456), (52, 601400), (62, 504400), (65, 481120), (80, 390910), (97, 322400), (100, 312728), (104, 300700), (124, 252200), (130, 240560), (155, 201760), (160, 195455), (194, 161200), (200, 156364), (208, 150350), (248, 126100), (260, 120280), (310, 100880), (325, 96224), (388, 80600), (400, 78182), (403, 77600), (416, 75175), (485, 64480), (496, 63050), (520, 60140), (620, 50440), (650, 48112), (775, 40352), (776, 40300), (800, 39091), (806, 38800), (970, 32240), (992, 31525), (1040, 30070), (1240, 25220), (1261, 24800), (1300, 24056), (1550, 20176), (1552, 20150), (1612, 19400), (1940, 16120), (2015, 15520), (2080, 15035), (2425, 12896), (2480, 12610), (2522, 12400), (2600, 12028), (3007, 10400), (3100, 10088), (3104, 10075), (3224, 9700), (3880, 8060), (4030, 7760), (4850, 6448), (4960, 6305), (5044, 6200), (5200, 6014)]