1981483420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{2801}}^1$

素因数の和:3011

約数の個数: 96

約数和(自身を含む): 4940845056

約数和(自身を除く): 2959361636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 163, 217, 310, 326, 434, 620, 652, 815, 868, 1085, 1141, 1630, 2170, 2282, 2801, 3260, 4340, 4564, 5053, 5602, 5705, 10106, 11204, 11410, 14005, 19607, 20212, 22820, 25265, 28010, 35371, 39214, 50530, 56020, 70742, 78428, 86831, 98035, 101060, 141484, 173662, 176855, 196070, 347324, 353710, 392140, 434155, 456563, 607817, 707420, 868310, 913126, 1215634, 1736620, 1826252, 2282815, 2431268, 3039085, 3195941, 4565630, 6078170, 6391882, 9131260, 12156340, 12783764, 14153453, 15979705, 28306906, 31959410, 56613812, 63918820, 70767265, 99074171, 141534530, 198148342, 283069060, 396296684, 495370855, 990741710, 1981483420]

約数ペア:

[(1, 1981483420), (2, 990741710), (4, 495370855), (5, 396296684), (7, 283069060), (10, 198148342), (14, 141534530), (20, 99074171), (28, 70767265), (31, 63918820), (35, 56613812), (62, 31959410), (70, 28306906), (124, 15979705), (140, 14153453), (155, 12783764), (163, 12156340), (217, 9131260), (310, 6391882), (326, 6078170), (434, 4565630), (620, 3195941), (652, 3039085), (815, 2431268), (868, 2282815), (1085, 1826252), (1141, 1736620), (1630, 1215634), (2170, 913126), (2282, 868310), (2801, 707420), (3260, 607817), (4340, 456563), (4564, 434155), (5053, 392140), (5602, 353710), (5705, 347324), (10106, 196070), (11204, 176855), (11410, 173662), (14005, 141484), (19607, 101060), (20212, 98035), (22820, 86831), (25265, 78428), (28010, 70742), (35371, 56020), (39214, 50530)]