289969240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 723275280

約数和(自身を除く): 433306040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 181, 220, 242, 331, 362, 440, 484, 605, 662, 724, 905, 968, 1210, 1324, 1448, 1655, 1810, 1991, 2420, 2648, 3310, 3620, 3641, 3982, 4840, 6620, 7240, 7282, 7964, 9955, 13240, 14564, 15928, 18205, 19910, 21901, 29128, 36410, 39820, 40051, 43802, 59911, 72820, 79640, 80102, 87604, 109505, 119822, 145640, 160204, 175208, 200255, 219010, 239644, 299555, 320408, 400510, 438020, 479288, 599110, 659021, 801020, 876040, 1198220, 1318042, 1602040, 2396440, 2636084, 3295105, 5272168, 6590210, 7249231, 13180420, 14498462, 26360840, 28996924, 36246155, 57993848, 72492310, 144984620, 289969240]

約数ペア:

[(1, 289969240), (2, 144984620), (4, 72492310), (5, 57993848), (8, 36246155), (10, 28996924), (11, 26360840), (20, 14498462), (22, 13180420), (40, 7249231), (44, 6590210), (55, 5272168), (88, 3295105), (110, 2636084), (121, 2396440), (181, 1602040), (220, 1318042), (242, 1198220), (331, 876040), (362, 801020), (440, 659021), (484, 599110), (605, 479288), (662, 438020), (724, 400510), (905, 320408), (968, 299555), (1210, 239644), (1324, 219010), (1448, 200255), (1655, 175208), (1810, 160204), (1991, 145640), (2420, 119822), (2648, 109505), (3310, 87604), (3620, 80102), (3641, 79640), (3982, 72820), (4840, 59911), (6620, 43802), (7240, 40051), (7282, 39820), (7964, 36410), (9955, 29128), (13240, 21901), (14564, 19910), (15928, 18205)]