71216920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{727}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 167731200

約数和(自身を除く): 96514280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 727, 790, 1240, 1454, 1580, 2449, 2908, 3160, 3635, 4898, 5816, 7270, 9796, 12245, 14540, 19592, 22537, 24490, 29080, 45074, 48980, 57433, 90148, 97960, 112685, 114866, 180296, 225370, 229732, 287165, 450740, 459464, 574330, 901480, 1148660, 1780423, 2297320, 3560846, 7121692, 8902115, 14243384, 17804230, 35608460, 71216920]

約数ペア:

[(1, 71216920), (2, 35608460), (4, 17804230), (5, 14243384), (8, 8902115), (10, 7121692), (20, 3560846), (31, 2297320), (40, 1780423), (62, 1148660), (79, 901480), (124, 574330), (155, 459464), (158, 450740), (248, 287165), (310, 229732), (316, 225370), (395, 180296), (620, 114866), (632, 112685), (727, 97960), (790, 90148), (1240, 57433), (1454, 48980), (1580, 45074), (2449, 29080), (2908, 24490), (3160, 22537), (3635, 19592), (4898, 14540), (5816, 12245), (7270, 9796)]