178868980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{1213}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 384857424

約数和(自身を除く): 205988444

約数列:

[1, 2, 4, 5, 10, 20, 73, 101, 146, 202, 292, 365, 404, 505, 730, 1010, 1213, 1460, 2020, 2426, 4852, 6065, 7373, 12130, 14746, 24260, 29492, 36865, 73730, 88549, 122513, 147460, 177098, 245026, 354196, 442745, 490052, 612565, 885490, 1225130, 1770980, 2450260, 8943449, 17886898, 35773796, 44717245, 89434490, 178868980]

約数ペア:

[(1, 178868980), (2, 89434490), (4, 44717245), (5, 35773796), (10, 17886898), (20, 8943449), (73, 2450260), (101, 1770980), (146, 1225130), (202, 885490), (292, 612565), (365, 490052), (404, 442745), (505, 354196), (730, 245026), (1010, 177098), (1213, 147460), (1460, 122513), (2020, 88549), (2426, 73730), (4852, 36865), (6065, 29492), (7373, 24260), (12130, 14746)]