64409840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1458

約数の個数: 80

約数和(自身を含む): 166569696

約数和(自身を除く): 102159856

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 530, 583, 848, 880, 1060, 1166, 1381, 2120, 2332, 2762, 2915, 4240, 4664, 5524, 5830, 6905, 9328, 11048, 11660, 13810, 15191, 22096, 23320, 27620, 30382, 46640, 55240, 60764, 73193, 75955, 110480, 121528, 146386, 151910, 243056, 292772, 303820, 365965, 585544, 607640, 731930, 805123, 1171088, 1215280, 1463860, 1610246, 2927720, 3220492, 4025615, 5855440, 6440984, 8051230, 12881968, 16102460, 32204920, 64409840]

約数ペア:

[(1, 64409840), (2, 32204920), (4, 16102460), (5, 12881968), (8, 8051230), (10, 6440984), (11, 5855440), (16, 4025615), (20, 3220492), (22, 2927720), (40, 1610246), (44, 1463860), (53, 1215280), (55, 1171088), (80, 805123), (88, 731930), (106, 607640), (110, 585544), (176, 365965), (212, 303820), (220, 292772), (265, 243056), (424, 151910), (440, 146386), (530, 121528), (583, 110480), (848, 75955), (880, 73193), (1060, 60764), (1166, 55240), (1381, 46640), (2120, 30382), (2332, 27620), (2762, 23320), (2915, 22096), (4240, 15191), (4664, 13810), (5524, 11660), (5830, 11048), (6905, 9328)]