1278902360

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1\times {\mathrm{541}}^1$

素因数の和:1188

約数の個数: 64

約数和(自身を含む): 2913922080

約数和(自身を除く): 1635019720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 523, 541, 565, 904, 1046, 1082, 1130, 2092, 2164, 2260, 2615, 2705, 4184, 4328, 4520, 5230, 5410, 10460, 10820, 20920, 21640, 59099, 61133, 118198, 122266, 236396, 244532, 282943, 295495, 305665, 472792, 489064, 565886, 590990, 611330, 1131772, 1181980, 1222660, 1414715, 2263544, 2363960, 2445320, 2829430, 5658860, 11317720, 31972559, 63945118, 127890236, 159862795, 255780472, 319725590, 639451180, 1278902360]

約数ペア:

[(1, 1278902360), (2, 639451180), (4, 319725590), (5, 255780472), (8, 159862795), (10, 127890236), (20, 63945118), (40, 31972559), (113, 11317720), (226, 5658860), (452, 2829430), (523, 2445320), (541, 2363960), (565, 2263544), (904, 1414715), (1046, 1222660), (1082, 1181980), (1130, 1131772), (2092, 611330), (2164, 590990), (2260, 565886), (2615, 489064), (2705, 472792), (4184, 305665), (4328, 295495), (4520, 282943), (5230, 244532), (5410, 236396), (10460, 122266), (10820, 118198), (20920, 61133), (21640, 59099)]