28782728

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 59566500

約数和(自身を除く): 30783772

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 244, 338, 349, 488, 676, 698, 793, 1352, 1396, 1586, 2792, 3172, 4537, 6344, 9074, 10309, 18148, 20618, 21289, 36296, 41236, 42578, 58981, 82472, 85156, 117962, 170312, 235924, 276757, 471848, 553514, 1107028, 2214056, 3597841, 7195682, 14391364, 28782728]

約数ペア:

[(1, 28782728), (2, 14391364), (4, 7195682), (8, 3597841), (13, 2214056), (26, 1107028), (52, 553514), (61, 471848), (104, 276757), (122, 235924), (169, 170312), (244, 117962), (338, 85156), (349, 82472), (488, 58981), (676, 42578), (698, 41236), (793, 36296), (1352, 21289), (1396, 20618), (1586, 18148), (2792, 10309), (3172, 9074), (4537, 6344)]