440910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 1244160

約数和(自身を除く): 803250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 71, 90, 115, 135, 138, 142, 207, 213, 230, 270, 345, 355, 414, 426, 621, 639, 690, 710, 1035, 1065, 1242, 1278, 1633, 1917, 2070, 2130, 3105, 3195, 3266, 3834, 4899, 6210, 6390, 8165, 9585, 9798, 14697, 16330, 19170, 24495, 29394, 44091, 48990, 73485, 88182, 146970, 220455, 440910]

約数ペア:

[(1, 440910), (2, 220455), (3, 146970), (5, 88182), (6, 73485), (9, 48990), (10, 44091), (15, 29394), (18, 24495), (23, 19170), (27, 16330), (30, 14697), (45, 9798), (46, 9585), (54, 8165), (69, 6390), (71, 6210), (90, 4899), (115, 3834), (135, 3266), (138, 3195), (142, 3105), (207, 2130), (213, 2070), (230, 1917), (270, 1633), (345, 1278), (355, 1242), (414, 1065), (426, 1035), (621, 710), (639, 690)]