98142980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19867}}^1$

素因数の和:19908

約数の個数: 48

約数和(自身を含む): 233647680

約数和(自身を除く): 135504700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 19867, 39734, 79468, 99335, 198670, 258271, 377473, 397340, 516542, 754946, 1033084, 1291355, 1509892, 1887365, 2582710, 3774730, 4907149, 5165420, 7549460, 9814298, 19628596, 24535745, 49071490, 98142980]

約数ペア:

[(1, 98142980), (2, 49071490), (4, 24535745), (5, 19628596), (10, 9814298), (13, 7549460), (19, 5165420), (20, 4907149), (26, 3774730), (38, 2582710), (52, 1887365), (65, 1509892), (76, 1291355), (95, 1033084), (130, 754946), (190, 516542), (247, 397340), (260, 377473), (380, 258271), (494, 198670), (988, 99335), (1235, 79468), (2470, 39734), (4940, 19867)]