291234190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 579156480

約数和(自身を除く): 287922290

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 139, 142, 227, 278, 355, 454, 695, 710, 923, 1135, 1390, 1807, 1846, 2270, 2951, 3614, 4615, 5902, 9035, 9230, 9869, 14755, 16117, 18070, 19738, 29510, 31553, 32234, 49345, 63106, 80585, 98690, 128297, 157765, 161170, 209521, 256594, 315530, 410189, 419042, 641485, 820378, 1047605, 1282970, 2050945, 2095210, 2240263, 4101890, 4480526, 11201315, 22402630, 29123419, 58246838, 145617095, 291234190]

約数ペア:

[(1, 291234190), (2, 145617095), (5, 58246838), (10, 29123419), (13, 22402630), (26, 11201315), (65, 4480526), (71, 4101890), (130, 2240263), (139, 2095210), (142, 2050945), (227, 1282970), (278, 1047605), (355, 820378), (454, 641485), (695, 419042), (710, 410189), (923, 315530), (1135, 256594), (1390, 209521), (1807, 161170), (1846, 157765), (2270, 128297), (2951, 98690), (3614, 80585), (4615, 63106), (5902, 49345), (9035, 32234), (9230, 31553), (9869, 29510), (14755, 19738), (16117, 18070)]