1640667080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{16519}}^1$

素因数の和:16734

約数の個数: 64

約数和(自身を含む): 3996518400

約数和(自身を除く): 2355851320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 520, 764, 955, 1528, 1910, 2483, 3820, 4966, 7640, 9932, 12415, 16519, 19864, 24830, 33038, 49660, 66076, 82595, 99320, 132152, 165190, 214747, 330380, 429494, 660760, 858988, 1073735, 1717976, 2147470, 3155129, 4294940, 6310258, 8589880, 12620516, 15775645, 25241032, 31551290, 41016677, 63102580, 82033354, 126205160, 164066708, 205083385, 328133416, 410166770, 820333540, 1640667080]

約数ペア:

[(1, 1640667080), (2, 820333540), (4, 410166770), (5, 328133416), (8, 205083385), (10, 164066708), (13, 126205160), (20, 82033354), (26, 63102580), (40, 41016677), (52, 31551290), (65, 25241032), (104, 15775645), (130, 12620516), (191, 8589880), (260, 6310258), (382, 4294940), (520, 3155129), (764, 2147470), (955, 1717976), (1528, 1073735), (1910, 858988), (2483, 660760), (3820, 429494), (4966, 330380), (7640, 214747), (9932, 165190), (12415, 132152), (16519, 99320), (19864, 82595), (24830, 66076), (33038, 49660)]