664728240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251791}}^1$

素因数の和:251818

約数の個数: 80

約数和(自身を含む): 2247998976

約数和(自身を除く): 1583270736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 251791, 503582, 755373, 1007164, 1258955, 1510746, 2014328, 2517910, 2769701, 3021492, 3776865, 4028656, 5035820, 5539402, 6042984, 7553730, 8309103, 10071640, 11078804, 12085968, 13848505, 15107460, 16618206, 20143280, 22157608, 27697010, 30214920, 33236412, 41545515, 44315216, 55394020, 60429840, 66472824, 83091030, 110788040, 132945648, 166182060, 221576080, 332364120, 664728240]

約数ペア:

[(1, 664728240), (2, 332364120), (3, 221576080), (4, 166182060), (5, 132945648), (6, 110788040), (8, 83091030), (10, 66472824), (11, 60429840), (12, 55394020), (15, 44315216), (16, 41545515), (20, 33236412), (22, 30214920), (24, 27697010), (30, 22157608), (33, 20143280), (40, 16618206), (44, 15107460), (48, 13848505), (55, 12085968), (60, 11078804), (66, 10071640), (80, 8309103), (88, 7553730), (110, 6042984), (120, 5539402), (132, 5035820), (165, 4028656), (176, 3776865), (220, 3021492), (240, 2769701), (264, 2517910), (330, 2014328), (440, 1510746), (528, 1258955), (660, 1007164), (880, 755373), (1320, 503582), (2640, 251791)]