30998140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 71793792

約数和(自身を除く): 40795652

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 173, 289, 310, 340, 346, 527, 578, 620, 692, 865, 1054, 1156, 1445, 1730, 2108, 2635, 2890, 2941, 3460, 5270, 5363, 5780, 5882, 8959, 10540, 10726, 11764, 14705, 17918, 21452, 26815, 29410, 35836, 44795, 49997, 53630, 58820, 89590, 91171, 99994, 107260, 179180, 182342, 199988, 249985, 364684, 455855, 499970, 911710, 999940, 1549907, 1823420, 3099814, 6199628, 7749535, 15499070, 30998140]

約数ペア:

[(1, 30998140), (2, 15499070), (4, 7749535), (5, 6199628), (10, 3099814), (17, 1823420), (20, 1549907), (31, 999940), (34, 911710), (62, 499970), (68, 455855), (85, 364684), (124, 249985), (155, 199988), (170, 182342), (173, 179180), (289, 107260), (310, 99994), (340, 91171), (346, 89590), (527, 58820), (578, 53630), (620, 49997), (692, 44795), (865, 35836), (1054, 29410), (1156, 26815), (1445, 21452), (1730, 17918), (2108, 14705), (2635, 11764), (2890, 10726), (2941, 10540), (3460, 8959), (5270, 5882), (5363, 5780)]