31304115

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 59911488

約数和(自身を除く): 28607373

約数列:

[1, 3, 5, 9, 15, 19, 41, 45, 47, 57, 95, 123, 141, 171, 205, 235, 285, 361, 369, 423, 615, 705, 779, 855, 893, 1083, 1805, 1845, 1927, 2115, 2337, 2679, 3249, 3895, 4465, 5415, 5781, 7011, 8037, 9635, 11685, 13395, 14801, 16245, 16967, 17343, 28905, 35055, 36613, 40185, 44403, 50901, 74005, 84835, 86715, 109839, 133209, 152703, 183065, 222015, 254505, 329517, 549195, 666045, 695647, 763515, 1647585, 2086941, 3478235, 6260823, 10434705, 31304115]

約数ペア:

[(1, 31304115), (3, 10434705), (5, 6260823), (9, 3478235), (15, 2086941), (19, 1647585), (41, 763515), (45, 695647), (47, 666045), (57, 549195), (95, 329517), (123, 254505), (141, 222015), (171, 183065), (205, 152703), (235, 133209), (285, 109839), (361, 86715), (369, 84835), (423, 74005), (615, 50901), (705, 44403), (779, 40185), (855, 36613), (893, 35055), (1083, 28905), (1805, 17343), (1845, 16967), (1927, 16245), (2115, 14801), (2337, 13395), (2679, 11685), (3249, 9635), (3895, 8037), (4465, 7011), (5415, 5781)]