31402590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 79875072

約数和(自身を除く): 48472482

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 71, 115, 138, 142, 213, 230, 345, 355, 426, 641, 690, 710, 1065, 1282, 1633, 1923, 2130, 3205, 3266, 3846, 4899, 6410, 8165, 9615, 9798, 14743, 16330, 19230, 24495, 29486, 44229, 45511, 48990, 73715, 88458, 91022, 136533, 147430, 221145, 227555, 273066, 442290, 455110, 682665, 1046753, 1365330, 2093506, 3140259, 5233765, 6280518, 10467530, 15701295, 31402590]

約数ペア:

[(1, 31402590), (2, 15701295), (3, 10467530), (5, 6280518), (6, 5233765), (10, 3140259), (15, 2093506), (23, 1365330), (30, 1046753), (46, 682665), (69, 455110), (71, 442290), (115, 273066), (138, 227555), (142, 221145), (213, 147430), (230, 136533), (345, 91022), (355, 88458), (426, 73715), (641, 48990), (690, 45511), (710, 44229), (1065, 29486), (1282, 24495), (1633, 19230), (1923, 16330), (2130, 14743), (3205, 9798), (3266, 9615), (3846, 8165), (4899, 6410)]