2000865880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{63079}}^1$

素因数の和:63164

約数の個数: 64

約数和(自身を含む): 4927809600

約数和(自身を除く): 2926943720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 7930, 15860, 31720, 63079, 126158, 252316, 315395, 504632, 630790, 820027, 1261580, 1640054, 2523160, 3280108, 3847819, 4100135, 6560216, 7695638, 8200270, 15391276, 16400540, 19239095, 30782552, 32801080, 38478190, 50021647, 76956380, 100043294, 153912760, 200086588, 250108235, 400173176, 500216470, 1000432940, 2000865880]

約数ペア:

[(1, 2000865880), (2, 1000432940), (4, 500216470), (5, 400173176), (8, 250108235), (10, 200086588), (13, 153912760), (20, 100043294), (26, 76956380), (40, 50021647), (52, 38478190), (61, 32801080), (65, 30782552), (104, 19239095), (122, 16400540), (130, 15391276), (244, 8200270), (260, 7695638), (305, 6560216), (488, 4100135), (520, 3847819), (610, 3280108), (793, 2523160), (1220, 1640054), (1586, 1261580), (2440, 820027), (3172, 630790), (3965, 504632), (6344, 315395), (7930, 252316), (15860, 126158), (31720, 63079)]