28820142

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 72334080

約数和(自身を除く): 43513938

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 29, 31, 39, 58, 62, 78, 87, 93, 117, 137, 174, 186, 234, 261, 274, 279, 377, 403, 411, 522, 558, 754, 806, 822, 899, 1131, 1209, 1233, 1781, 1798, 2262, 2418, 2466, 2697, 3393, 3562, 3627, 3973, 4247, 5343, 5394, 6786, 7254, 7946, 8091, 8494, 10686, 11687, 11919, 12741, 16029, 16182, 23374, 23838, 25482, 32058, 35061, 35757, 38223, 51649, 55211, 70122, 71514, 76446, 103298, 105183, 110422, 123163, 154947, 165633, 210366, 246326, 309894, 331266, 369489, 464841, 496899, 738978, 929682, 993798, 1108467, 1601119, 2216934, 3202238, 4803357, 9606714, 14410071, 28820142]

約数ペア:

[(1, 28820142), (2, 14410071), (3, 9606714), (6, 4803357), (9, 3202238), (13, 2216934), (18, 1601119), (26, 1108467), (29, 993798), (31, 929682), (39, 738978), (58, 496899), (62, 464841), (78, 369489), (87, 331266), (93, 309894), (117, 246326), (137, 210366), (174, 165633), (186, 154947), (234, 123163), (261, 110422), (274, 105183), (279, 103298), (377, 76446), (403, 71514), (411, 70122), (522, 55211), (558, 51649), (754, 38223), (806, 35757), (822, 35061), (899, 32058), (1131, 25482), (1209, 23838), (1233, 23374), (1781, 16182), (1798, 16029), (2262, 12741), (2418, 11919), (2466, 11687), (2697, 10686), (3393, 8494), (3562, 8091), (3627, 7946), (3973, 7254), (4247, 6786), (5343, 5394)]