20073750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:179

約数の個数: 80

約数和(自身を含む): 51620976

約数和(自身を除く): 31547226

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 53, 75, 101, 106, 125, 150, 159, 202, 250, 265, 303, 318, 375, 505, 530, 606, 625, 750, 795, 1010, 1250, 1325, 1515, 1590, 1875, 2525, 2650, 3030, 3750, 3975, 5050, 5353, 6625, 7575, 7950, 10706, 12625, 13250, 15150, 16059, 19875, 25250, 26765, 32118, 33125, 37875, 39750, 53530, 63125, 66250, 75750, 80295, 99375, 126250, 133825, 160590, 189375, 198750, 267650, 378750, 401475, 669125, 802950, 1338250, 2007375, 3345625, 4014750, 6691250, 10036875, 20073750]

約数ペア:

[(1, 20073750), (2, 10036875), (3, 6691250), (5, 4014750), (6, 3345625), (10, 2007375), (15, 1338250), (25, 802950), (30, 669125), (50, 401475), (53, 378750), (75, 267650), (101, 198750), (106, 189375), (125, 160590), (150, 133825), (159, 126250), (202, 99375), (250, 80295), (265, 75750), (303, 66250), (318, 63125), (375, 53530), (505, 39750), (530, 37875), (606, 33125), (625, 32118), (750, 26765), (795, 25250), (1010, 19875), (1250, 16059), (1325, 15150), (1515, 13250), (1590, 12625), (1875, 10706), (2525, 7950), (2650, 7575), (3030, 6625), (3750, 5353), (3975, 5050)]