20020736840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{617}}^1\times {\mathrm{62401}}^1$

素因数の和:63042

約数の個数: 64

約数和(自身を含む): 48591189360

約数和(自身を除く): 28570452520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 617, 1234, 2468, 3085, 4936, 6170, 8021, 12340, 16042, 24680, 32084, 40105, 62401, 64168, 80210, 124802, 160420, 249604, 312005, 320840, 499208, 624010, 811213, 1248020, 1622426, 2496040, 3244852, 4056065, 6489704, 8112130, 16224260, 32448520, 38501417, 77002834, 154005668, 192507085, 308011336, 385014170, 500518421, 770028340, 1001036842, 1540056680, 2002073684, 2502592105, 4004147368, 5005184210, 10010368420, 20020736840]

約数ペア:

[(1, 20020736840), (2, 10010368420), (4, 5005184210), (5, 4004147368), (8, 2502592105), (10, 2002073684), (13, 1540056680), (20, 1001036842), (26, 770028340), (40, 500518421), (52, 385014170), (65, 308011336), (104, 192507085), (130, 154005668), (260, 77002834), (520, 38501417), (617, 32448520), (1234, 16224260), (2468, 8112130), (3085, 6489704), (4936, 4056065), (6170, 3244852), (8021, 2496040), (12340, 1622426), (16042, 1248020), (24680, 811213), (32084, 624010), (40105, 499208), (62401, 320840), (64168, 312005), (80210, 249604), (124802, 160420)]