31115760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9973}}^1$

素因数の和:10002

約数の個数: 80

約数和(自身を含む): 103889184

約数和(自身を除く): 72773424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9973, 19946, 29919, 39892, 49865, 59838, 79784, 99730, 119676, 129649, 149595, 159568, 199460, 239352, 259298, 299190, 388947, 398920, 478704, 518596, 598380, 648245, 777894, 797840, 1037192, 1196760, 1296490, 1555788, 1944735, 2074384, 2393520, 2592980, 3111576, 3889470, 5185960, 6223152, 7778940, 10371920, 15557880, 31115760]

約数ペア:

[(1, 31115760), (2, 15557880), (3, 10371920), (4, 7778940), (5, 6223152), (6, 5185960), (8, 3889470), (10, 3111576), (12, 2592980), (13, 2393520), (15, 2074384), (16, 1944735), (20, 1555788), (24, 1296490), (26, 1196760), (30, 1037192), (39, 797840), (40, 777894), (48, 648245), (52, 598380), (60, 518596), (65, 478704), (78, 398920), (80, 388947), (104, 299190), (120, 259298), (130, 239352), (156, 199460), (195, 159568), (208, 149595), (240, 129649), (260, 119676), (312, 99730), (390, 79784), (520, 59838), (624, 49865), (780, 39892), (1040, 29919), (1560, 19946), (3120, 9973)]