18421613600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{57139}}^1$

素因数の和:57203

約数の個数: 144

約数和(自身を含む): 49994300160

約数和(自身を除く): 31572686560

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, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 775, 800, 806, 992, 1040, 1240, 1300, 1550, 1612, 2015, 2080, 2480, 2600, 3100, 3224, 4030, 4960, 5200, 6200, 6448, 8060, 10075, 10400, 12400, 12896, 16120, 20150, 24800, 32240, 40300, 57139, 64480, 80600, 114278, 161200, 228556, 285695, 322400, 457112, 571390, 742807, 914224, 1142780, 1428475, 1485614, 1771309, 1828448, 2285560, 2856950, 2971228, 3542618, 3714035, 4571120, 5713900, 5942456, 7085236, 7428070, 8856545, 9142240, 11427800, 11884912, 14170472, 14856140, 17713090, 18570175, 22855600, 23027017, 23769824, 28340944, 29712280, 35426180, 37140350, 44282725, 45711200, 46054034, 56681888, 59424560, 70852360, 74280700, 88565450, 92108068, 115135085, 118849120, 141704720, 148561400, 177130900, 184216136, 230270170, 283409440, 297122800, 354261800, 368432272, 460540340, 575675425, 594245600, 708523600, 736864544, 921080680, 1151350850, 1417047200, 1842161360, 2302701700, 3684322720, 4605403400, 9210806800, 18421613600]

約数ペア:

[(1, 18421613600), (2, 9210806800), (4, 4605403400), (5, 3684322720), (8, 2302701700), (10, 1842161360), (13, 1417047200), (16, 1151350850), (20, 921080680), (25, 736864544), (26, 708523600), (31, 594245600), (32, 575675425), (40, 460540340), (50, 368432272), (52, 354261800), (62, 297122800), (65, 283409440), (80, 230270170), (100, 184216136), (104, 177130900), (124, 148561400), (130, 141704720), (155, 118849120), (160, 115135085), (200, 92108068), (208, 88565450), (248, 74280700), (260, 70852360), (310, 59424560), (325, 56681888), (400, 46054034), (403, 45711200), (416, 44282725), (496, 37140350), (520, 35426180), (620, 29712280), (650, 28340944), (775, 23769824), (800, 23027017), (806, 22855600), (992, 18570175), (1040, 17713090), (1240, 14856140), (1300, 14170472), (1550, 11884912), (1612, 11427800), (2015, 9142240), (2080, 8856545), (2480, 7428070), (2600, 7085236), (3100, 5942456), (3224, 5713900), (4030, 4571120), (4960, 3714035), (5200, 3542618), (6200, 2971228), (6448, 2856950), (8060, 2285560), (10075, 1828448), (10400, 1771309), (12400, 1485614), (12896, 1428475), (16120, 1142780), (20150, 914224), (24800, 742807), (32240, 571390), (40300, 457112), (57139, 322400), (64480, 285695), (80600, 228556), (114278, 161200)]