20088729830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{478417}}^1$

素因数の和:478473

約数の個数: 64

約数和(自身を含む): 43402080960

約数和(自身を除く): 23313351130

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 442, 494, 646, 1105, 1235, 1615, 2210, 2470, 3230, 4199, 8398, 20995, 41990, 478417, 956834, 2392085, 4784170, 6219421, 8133089, 9089923, 12438842, 16266178, 18179846, 31097105, 40665445, 45449615, 62194210, 81330890, 90899230, 105730157, 118168999, 154528691, 211460314, 236337998, 309057382, 528650785, 590844995, 772643455, 1057301570, 1181689990, 1545286910, 2008872983, 4017745966, 10044364915, 20088729830]

約数ペア:

[(1, 20088729830), (2, 10044364915), (5, 4017745966), (10, 2008872983), (13, 1545286910), (17, 1181689990), (19, 1057301570), (26, 772643455), (34, 590844995), (38, 528650785), (65, 309057382), (85, 236337998), (95, 211460314), (130, 154528691), (170, 118168999), (190, 105730157), (221, 90899230), (247, 81330890), (323, 62194210), (442, 45449615), (494, 40665445), (646, 31097105), (1105, 18179846), (1235, 16266178), (1615, 12438842), (2210, 9089923), (2470, 8133089), (3230, 6219421), (4199, 4784170), (8398, 2392085), (20995, 956834), (41990, 478417)]