64023440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61561}}^1$

素因数の和:61587

約数の個数: 40

約数和(自身を含む): 160307448

約数和(自身を除く): 96284008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 61561, 123122, 246244, 307805, 492488, 615610, 800293, 984976, 1231220, 1600586, 2462440, 3201172, 4001465, 4924880, 6402344, 8002930, 12804688, 16005860, 32011720, 64023440]

約数ペア:

[(1, 64023440), (2, 32011720), (4, 16005860), (5, 12804688), (8, 8002930), (10, 6402344), (13, 4924880), (16, 4001465), (20, 3201172), (26, 2462440), (40, 1600586), (52, 1231220), (65, 984976), (80, 800293), (104, 615610), (130, 492488), (208, 307805), (260, 246244), (520, 123122), (1040, 61561)]