287795660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{10667}}^1$

素因数の和:10766

約数の個数: 48

約数和(自身を含む): 645200640

約数和(自身を除く): 357404980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 10667, 13490, 21334, 26980, 42668, 53335, 106670, 202673, 213340, 405346, 757357, 810692, 1013365, 1514714, 2026730, 3029428, 3786785, 4053460, 7573570, 14389783, 15147140, 28779566, 57559132, 71948915, 143897830, 287795660]

約数ペア:

[(1, 287795660), (2, 143897830), (4, 71948915), (5, 57559132), (10, 28779566), (19, 15147140), (20, 14389783), (38, 7573570), (71, 4053460), (76, 3786785), (95, 3029428), (142, 2026730), (190, 1514714), (284, 1013365), (355, 810692), (380, 757357), (710, 405346), (1349, 213340), (1420, 202673), (2698, 106670), (5396, 53335), (6745, 42668), (10667, 26980), (13490, 21334)]