142734980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 304831296

約数和(自身を除く): 162096316

約数列:

[1, 2, 4, 5, 10, 20, 131, 157, 262, 314, 347, 524, 628, 655, 694, 785, 1310, 1388, 1570, 1735, 2620, 3140, 3470, 6940, 20567, 41134, 45457, 54479, 82268, 90914, 102835, 108958, 181828, 205670, 217916, 227285, 272395, 411340, 454570, 544790, 909140, 1089580, 7136749, 14273498, 28546996, 35683745, 71367490, 142734980]

約数ペア:

[(1, 142734980), (2, 71367490), (4, 35683745), (5, 28546996), (10, 14273498), (20, 7136749), (131, 1089580), (157, 909140), (262, 544790), (314, 454570), (347, 411340), (524, 272395), (628, 227285), (655, 217916), (694, 205670), (785, 181828), (1310, 108958), (1388, 102835), (1570, 90914), (1735, 82268), (2620, 54479), (3140, 45457), (3470, 41134), (6940, 20567)]