1284804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{8707}}^1$

素因数の和:8773

約数の個数: 128

約数和(自身を含む): 3611381760

約数和(自身を除く): 2326576840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 527, 595, 620, 680, 868, 952, 1054, 1085, 1190, 1240, 1736, 2108, 2170, 2380, 2635, 3689, 4216, 4340, 4760, 5270, 7378, 8680, 8707, 10540, 14756, 17414, 18445, 21080, 29512, 34828, 36890, 43535, 60949, 69656, 73780, 87070, 121898, 147560, 148019, 174140, 243796, 269917, 296038, 304745, 348280, 487592, 539834, 592076, 609490, 740095, 1036133, 1079668, 1184152, 1218980, 1349585, 1480190, 1889419, 2072266, 2159336, 2437960, 2699170, 2960380, 3778838, 4144532, 4588589, 5180665, 5398340, 5920760, 7557676, 8289064, 9177178, 9447095, 10361330, 10796680, 15115352, 18354356, 18894190, 20722660, 22942945, 32120123, 36708712, 37788380, 41445320, 45885890, 64240246, 75576760, 91771780, 128480492, 160600615, 183543560, 256960984, 321201230, 642402460, 1284804920]

約数ペア:

[(1, 1284804920), (2, 642402460), (4, 321201230), (5, 256960984), (7, 183543560), (8, 160600615), (10, 128480492), (14, 91771780), (17, 75576760), (20, 64240246), (28, 45885890), (31, 41445320), (34, 37788380), (35, 36708712), (40, 32120123), (56, 22942945), (62, 20722660), (68, 18894190), (70, 18354356), (85, 15115352), (119, 10796680), (124, 10361330), (136, 9447095), (140, 9177178), (155, 8289064), (170, 7557676), (217, 5920760), (238, 5398340), (248, 5180665), (280, 4588589), (310, 4144532), (340, 3778838), (434, 2960380), (476, 2699170), (527, 2437960), (595, 2159336), (620, 2072266), (680, 1889419), (868, 1480190), (952, 1349585), (1054, 1218980), (1085, 1184152), (1190, 1079668), (1240, 1036133), (1736, 740095), (2108, 609490), (2170, 592076), (2380, 539834), (2635, 487592), (3689, 348280), (4216, 304745), (4340, 296038), (4760, 269917), (5270, 243796), (7378, 174140), (8680, 148019), (8707, 147560), (10540, 121898), (14756, 87070), (17414, 73780), (18445, 69656), (21080, 60949), (29512, 43535), (34828, 36890)]