202153960

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 463034880

約数和(自身を除く): 260880920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 173, 223, 262, 346, 446, 524, 655, 692, 865, 892, 1048, 1115, 1310, 1384, 1730, 1784, 2230, 2620, 3460, 4460, 5240, 6920, 8920, 22663, 29213, 38579, 45326, 58426, 77158, 90652, 113315, 116852, 146065, 154316, 181304, 192895, 226630, 233704, 292130, 308632, 385790, 453260, 584260, 771580, 906520, 1168520, 1543160, 5053849, 10107698, 20215396, 25269245, 40430792, 50538490, 101076980, 202153960]

約数ペア:

[(1, 202153960), (2, 101076980), (4, 50538490), (5, 40430792), (8, 25269245), (10, 20215396), (20, 10107698), (40, 5053849), (131, 1543160), (173, 1168520), (223, 906520), (262, 771580), (346, 584260), (446, 453260), (524, 385790), (655, 308632), (692, 292130), (865, 233704), (892, 226630), (1048, 192895), (1115, 181304), (1310, 154316), (1384, 146065), (1730, 116852), (1784, 113315), (2230, 90652), (2620, 77158), (3460, 58426), (4460, 45326), (5240, 38579), (6920, 29213), (8920, 22663)]