40654640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 106743168

約数和(自身を除く): 66088528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 97, 104, 124, 130, 155, 169, 194, 208, 248, 260, 310, 338, 388, 403, 485, 496, 520, 620, 676, 776, 806, 845, 970, 1040, 1240, 1261, 1352, 1552, 1612, 1690, 1940, 2015, 2480, 2522, 2704, 3007, 3224, 3380, 3880, 4030, 5044, 5239, 6014, 6305, 6448, 6760, 7760, 8060, 10088, 10478, 12028, 12610, 13520, 15035, 16120, 16393, 20176, 20956, 24056, 25220, 26195, 30070, 32240, 32786, 39091, 41912, 48112, 50440, 52390, 60140, 65572, 78182, 81965, 83824, 100880, 104780, 120280, 131144, 156364, 163930, 195455, 209560, 240560, 262288, 312728, 327860, 390910, 419120, 508183, 625456, 655720, 781820, 1016366, 1311440, 1563640, 2032732, 2540915, 3127280, 4065464, 5081830, 8130928, 10163660, 20327320, 40654640]

約数ペア:

[(1, 40654640), (2, 20327320), (4, 10163660), (5, 8130928), (8, 5081830), (10, 4065464), (13, 3127280), (16, 2540915), (20, 2032732), (26, 1563640), (31, 1311440), (40, 1016366), (52, 781820), (62, 655720), (65, 625456), (80, 508183), (97, 419120), (104, 390910), (124, 327860), (130, 312728), (155, 262288), (169, 240560), (194, 209560), (208, 195455), (248, 163930), (260, 156364), (310, 131144), (338, 120280), (388, 104780), (403, 100880), (485, 83824), (496, 81965), (520, 78182), (620, 65572), (676, 60140), (776, 52390), (806, 50440), (845, 48112), (970, 41912), (1040, 39091), (1240, 32786), (1261, 32240), (1352, 30070), (1552, 26195), (1612, 25220), (1690, 24056), (1940, 20956), (2015, 20176), (2480, 16393), (2522, 16120), (2704, 15035), (3007, 13520), (3224, 12610), (3380, 12028), (3880, 10478), (4030, 10088), (5044, 8060), (5239, 7760), (6014, 6760), (6305, 6448)]