2145924820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{4261}}^1$

素因数の和:4445

約数の個数: 72

約数和(自身を含む): 4913659800

約数和(自身を除く): 2767734980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 169, 260, 298, 338, 596, 676, 745, 845, 1490, 1690, 1937, 2980, 3380, 3874, 4261, 7748, 8522, 9685, 17044, 19370, 21305, 25181, 38740, 42610, 50362, 55393, 85220, 100724, 110786, 125905, 221572, 251810, 276965, 503620, 553930, 634889, 720109, 1107860, 1269778, 1440218, 2539556, 2880436, 3174445, 3600545, 6348890, 7201090, 8253557, 12697780, 14402180, 16507114, 33014228, 41267785, 82535570, 107296241, 165071140, 214592482, 429184964, 536481205, 1072962410, 2145924820]

約数ペア:

[(1, 2145924820), (2, 1072962410), (4, 536481205), (5, 429184964), (10, 214592482), (13, 165071140), (20, 107296241), (26, 82535570), (52, 41267785), (65, 33014228), (130, 16507114), (149, 14402180), (169, 12697780), (260, 8253557), (298, 7201090), (338, 6348890), (596, 3600545), (676, 3174445), (745, 2880436), (845, 2539556), (1490, 1440218), (1690, 1269778), (1937, 1107860), (2980, 720109), (3380, 634889), (3874, 553930), (4261, 503620), (7748, 276965), (8522, 251810), (9685, 221572), (17044, 125905), (19370, 110786), (21305, 100724), (25181, 85220), (38740, 55393), (42610, 50362)]