28621684

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 64350720

約数和(自身を除く): 35729036

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 49, 52, 91, 94, 98, 182, 188, 196, 239, 329, 364, 478, 611, 637, 658, 956, 1222, 1274, 1316, 1673, 2303, 2444, 2548, 3107, 3346, 4277, 4606, 6214, 6692, 8554, 9212, 11233, 11711, 12428, 17108, 21749, 22466, 23422, 29939, 43498, 44932, 46844, 59878, 78631, 86996, 119756, 146029, 152243, 157262, 292058, 304486, 314524, 550417, 584116, 608972, 1022203, 1100834, 2044406, 2201668, 4088812, 7155421, 14310842, 28621684]

約数ペア:

[(1, 28621684), (2, 14310842), (4, 7155421), (7, 4088812), (13, 2201668), (14, 2044406), (26, 1100834), (28, 1022203), (47, 608972), (49, 584116), (52, 550417), (91, 314524), (94, 304486), (98, 292058), (182, 157262), (188, 152243), (196, 146029), (239, 119756), (329, 86996), (364, 78631), (478, 59878), (611, 46844), (637, 44932), (658, 43498), (956, 29939), (1222, 23422), (1274, 22466), (1316, 21749), (1673, 17108), (2303, 12428), (2444, 11711), (2548, 11233), (3107, 9212), (3346, 8554), (4277, 6692), (4606, 6214)]