25443100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 58013648

約数和(自身を除く): 32570548

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 61, 86, 97, 100, 122, 172, 194, 215, 244, 305, 388, 430, 485, 610, 860, 970, 1075, 1220, 1525, 1940, 2150, 2425, 2623, 3050, 4171, 4300, 4850, 5246, 5917, 6100, 8342, 9700, 10492, 11834, 13115, 16684, 20855, 23668, 26230, 29585, 41710, 52460, 59170, 65575, 83420, 104275, 118340, 131150, 147925, 208550, 254431, 262300, 295850, 417100, 508862, 591700, 1017724, 1272155, 2544310, 5088620, 6360775, 12721550, 25443100]

約数ペア:

[(1, 25443100), (2, 12721550), (4, 6360775), (5, 5088620), (10, 2544310), (20, 1272155), (25, 1017724), (43, 591700), (50, 508862), (61, 417100), (86, 295850), (97, 262300), (100, 254431), (122, 208550), (172, 147925), (194, 131150), (215, 118340), (244, 104275), (305, 83420), (388, 65575), (430, 59170), (485, 52460), (610, 41710), (860, 29585), (970, 26230), (1075, 23668), (1220, 20855), (1525, 16684), (1940, 13115), (2150, 11834), (2425, 10492), (2623, 9700), (3050, 8342), (4171, 6100), (4300, 5917), (4850, 5246)]