210147721940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1489}}^1\times {\mathrm{542821}}^1$

素因数の和:544332

約数の個数: 48

約数和(自身を含む): 475577210640

約数和(自身を除く): 265429488700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1489, 2978, 5956, 7445, 14890, 19357, 29780, 38714, 77428, 96785, 193570, 387140, 542821, 1085642, 2171284, 2714105, 5428210, 7056673, 10856420, 14113346, 28226692, 35283365, 70566730, 141133460, 808260469, 1616520938, 3233041876, 4041302345, 8082604690, 10507386097, 16165209380, 21014772194, 42029544388, 52536930485, 105073860970, 210147721940]

約数ペア:

[(1, 210147721940), (2, 105073860970), (4, 52536930485), (5, 42029544388), (10, 21014772194), (13, 16165209380), (20, 10507386097), (26, 8082604690), (52, 4041302345), (65, 3233041876), (130, 1616520938), (260, 808260469), (1489, 141133460), (2978, 70566730), (5956, 35283365), (7445, 28226692), (14890, 14113346), (19357, 10856420), (29780, 7056673), (38714, 5428210), (77428, 2714105), (96785, 2171284), (193570, 1085642), (387140, 542821)]