72708340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{977}}^1$

素因数の和:1108

約数の個数: 36

約数和(自身を含む): 155390508

約数和(自身を除く): 82682168

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 977, 1220, 1954, 3721, 3908, 4885, 7442, 9770, 14884, 18605, 19540, 37210, 59597, 74420, 119194, 238388, 297985, 595970, 1191940, 3635417, 7270834, 14541668, 18177085, 36354170, 72708340]

約数ペア:

[(1, 72708340), (2, 36354170), (4, 18177085), (5, 14541668), (10, 7270834), (20, 3635417), (61, 1191940), (122, 595970), (244, 297985), (305, 238388), (610, 119194), (977, 74420), (1220, 59597), (1954, 37210), (3721, 19540), (3908, 18605), (4885, 14884), (7442, 9770)]