74627980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:575

約数の個数: 72

約数和(自身を含む): 183629376

約数和(自身を除く): 109001396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 271, 281, 490, 542, 562, 980, 1084, 1124, 1355, 1405, 1897, 1967, 2710, 2810, 3794, 3934, 5420, 5620, 7588, 7868, 9485, 9835, 13279, 13769, 18970, 19670, 26558, 27538, 37940, 39340, 53116, 55076, 66395, 68845, 76151, 132790, 137690, 152302, 265580, 275380, 304604, 380755, 533057, 761510, 1066114, 1523020, 2132228, 2665285, 3731399, 5330570, 7462798, 10661140, 14925596, 18656995, 37313990, 74627980]

約数ペア:

[(1, 74627980), (2, 37313990), (4, 18656995), (5, 14925596), (7, 10661140), (10, 7462798), (14, 5330570), (20, 3731399), (28, 2665285), (35, 2132228), (49, 1523020), (70, 1066114), (98, 761510), (140, 533057), (196, 380755), (245, 304604), (271, 275380), (281, 265580), (490, 152302), (542, 137690), (562, 132790), (980, 76151), (1084, 68845), (1124, 66395), (1355, 55076), (1405, 53116), (1897, 39340), (1967, 37940), (2710, 27538), (2810, 26558), (3794, 19670), (3934, 18970), (5420, 13769), (5620, 13279), (7588, 9835), (7868, 9485)]