2440980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 7547904

約数和(自身を除く): 5106924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 191, 213, 284, 355, 382, 426, 573, 639, 710, 764, 852, 955, 1065, 1146, 1278, 1420, 1719, 1910, 2130, 2292, 2556, 2865, 3195, 3438, 3820, 4260, 5730, 6390, 6876, 8595, 11460, 12780, 13561, 17190, 27122, 34380, 40683, 54244, 67805, 81366, 122049, 135610, 162732, 203415, 244098, 271220, 406830, 488196, 610245, 813660, 1220490, 2440980]

約数ペア:

[(1, 2440980), (2, 1220490), (3, 813660), (4, 610245), (5, 488196), (6, 406830), (9, 271220), (10, 244098), (12, 203415), (15, 162732), (18, 135610), (20, 122049), (30, 81366), (36, 67805), (45, 54244), (60, 40683), (71, 34380), (90, 27122), (142, 17190), (180, 13561), (191, 12780), (213, 11460), (284, 8595), (355, 6876), (382, 6390), (426, 5730), (573, 4260), (639, 3820), (710, 3438), (764, 3195), (852, 2865), (955, 2556), (1065, 2292), (1146, 2130), (1278, 1910), (1420, 1719)]