87885868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 193643520

約数和(自身を除く): 105757652

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 73, 76, 124, 133, 146, 217, 266, 292, 434, 511, 532, 589, 868, 1022, 1178, 1387, 2044, 2263, 2356, 2774, 4123, 4526, 5329, 5548, 8246, 9052, 9709, 10658, 15841, 16492, 19418, 21316, 31682, 37303, 38836, 42997, 63364, 74606, 85994, 101251, 149212, 165199, 171988, 202502, 300979, 330398, 405004, 601958, 660796, 708757, 1156393, 1203916, 1417514, 2312786, 2835028, 3138781, 4625572, 6277562, 12555124, 21971467, 43942934, 87885868]

約数ペア:

[(1, 87885868), (2, 43942934), (4, 21971467), (7, 12555124), (14, 6277562), (19, 4625572), (28, 3138781), (31, 2835028), (38, 2312786), (62, 1417514), (73, 1203916), (76, 1156393), (124, 708757), (133, 660796), (146, 601958), (217, 405004), (266, 330398), (292, 300979), (434, 202502), (511, 171988), (532, 165199), (589, 149212), (868, 101251), (1022, 85994), (1178, 74606), (1387, 63364), (2044, 42997), (2263, 38836), (2356, 37303), (2774, 31682), (4123, 21316), (4526, 19418), (5329, 16492), (5548, 15841), (8246, 10658), (9052, 9709)]