644879532

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1087

約数の個数: 96

約数和(自身を含む): 1734969600

約数和(自身を除く): 1090090068

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 389, 418, 627, 661, 778, 836, 1167, 1254, 1322, 1556, 1983, 2334, 2508, 2644, 3966, 4279, 4668, 7271, 7391, 7932, 8558, 12559, 12837, 14542, 14782, 17116, 21813, 22173, 25118, 25674, 29084, 29564, 37677, 43626, 44346, 50236, 51348, 75354, 81301, 87252, 88692, 138149, 150708, 162602, 243903, 257129, 276298, 325204, 414447, 487806, 514258, 552596, 771387, 828894, 975612, 1028516, 1542774, 1657788, 2828419, 3085548, 4885451, 5656838, 8485257, 9770902, 11313676, 14656353, 16970514, 19541804, 29312706, 33941028, 53739961, 58625412, 107479922, 161219883, 214959844, 322439766, 644879532]

約数ペア:

[(1, 644879532), (2, 322439766), (3, 214959844), (4, 161219883), (6, 107479922), (11, 58625412), (12, 53739961), (19, 33941028), (22, 29312706), (33, 19541804), (38, 16970514), (44, 14656353), (57, 11313676), (66, 9770902), (76, 8485257), (114, 5656838), (132, 4885451), (209, 3085548), (228, 2828419), (389, 1657788), (418, 1542774), (627, 1028516), (661, 975612), (778, 828894), (836, 771387), (1167, 552596), (1254, 514258), (1322, 487806), (1556, 414447), (1983, 325204), (2334, 276298), (2508, 257129), (2644, 243903), (3966, 162602), (4279, 150708), (4668, 138149), (7271, 88692), (7391, 87252), (7932, 81301), (8558, 75354), (12559, 51348), (12837, 50236), (14542, 44346), (14782, 43626), (17116, 37677), (21813, 29564), (22173, 29084), (25118, 25674)]