745420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 1749888

約数和(自身を除く): 1004468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 61, 65, 94, 122, 130, 188, 235, 244, 260, 305, 470, 610, 611, 793, 940, 1220, 1222, 1586, 2444, 2867, 3055, 3172, 3965, 5734, 6110, 7930, 11468, 12220, 14335, 15860, 28670, 37271, 57340, 74542, 149084, 186355, 372710, 745420]

約数ペア:

[(1, 745420), (2, 372710), (4, 186355), (5, 149084), (10, 74542), (13, 57340), (20, 37271), (26, 28670), (47, 15860), (52, 14335), (61, 12220), (65, 11468), (94, 7930), (122, 6110), (130, 5734), (188, 3965), (235, 3172), (244, 3055), (260, 2867), (305, 2444), (470, 1586), (610, 1222), (611, 1220), (793, 940)]