168938840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19463}}^1$

素因数の和:19512

約数の個数: 64

約数和(自身を含む): 448450560

約数和(自身を除く): 279511720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 19463, 38926, 77852, 97315, 136241, 155704, 194630, 272482, 389260, 544964, 603353, 681205, 778520, 1089928, 1206706, 1362410, 2413412, 2724820, 3016765, 4223471, 4826824, 5449640, 6033530, 8446942, 12067060, 16893884, 21117355, 24134120, 33787768, 42234710, 84469420, 168938840]

約数ペア:

[(1, 168938840), (2, 84469420), (4, 42234710), (5, 33787768), (7, 24134120), (8, 21117355), (10, 16893884), (14, 12067060), (20, 8446942), (28, 6033530), (31, 5449640), (35, 4826824), (40, 4223471), (56, 3016765), (62, 2724820), (70, 2413412), (124, 1362410), (140, 1206706), (155, 1089928), (217, 778520), (248, 681205), (280, 603353), (310, 544964), (434, 389260), (620, 272482), (868, 194630), (1085, 155704), (1240, 136241), (1736, 97315), (2170, 77852), (4340, 38926), (8680, 19463)]