9940978980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2906719}}^1$

素因数の和:2906753

約数の個数: 72

約数和(自身を含む): 31741382400

約数和(自身を除く): 21800403420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 2906719, 5813438, 8720157, 11626876, 14533595, 17440314, 26160471, 29067190, 34880628, 43600785, 52320942, 55227661, 58134380, 87201570, 104641884, 110455322, 130802355, 165682983, 174403140, 220910644, 261604710, 276138305, 331365966, 497048949, 523209420, 552276610, 662731932, 828414915, 994097898, 1104553220, 1656829830, 1988195796, 2485244745, 3313659660, 4970489490, 9940978980]

約数ペア:

[(1, 9940978980), (2, 4970489490), (3, 3313659660), (4, 2485244745), (5, 1988195796), (6, 1656829830), (9, 1104553220), (10, 994097898), (12, 828414915), (15, 662731932), (18, 552276610), (19, 523209420), (20, 497048949), (30, 331365966), (36, 276138305), (38, 261604710), (45, 220910644), (57, 174403140), (60, 165682983), (76, 130802355), (90, 110455322), (95, 104641884), (114, 87201570), (171, 58134380), (180, 55227661), (190, 52320942), (228, 43600785), (285, 34880628), (342, 29067190), (380, 26160471), (570, 17440314), (684, 14533595), (855, 11626876), (1140, 8720157), (1710, 5813438), (3420, 2906719)]