2678340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{911}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 8733312

約数和(自身を除く): 6054972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 911, 980, 1470, 1822, 2733, 2940, 3644, 4555, 5466, 6377, 9110, 10932, 12754, 13665, 18220, 19131, 25508, 27330, 31885, 38262, 44639, 54660, 63770, 76524, 89278, 95655, 127540, 133917, 178556, 191310, 223195, 267834, 382620, 446390, 535668, 669585, 892780, 1339170, 2678340]

約数ペア:

[(1, 2678340), (2, 1339170), (3, 892780), (4, 669585), (5, 535668), (6, 446390), (7, 382620), (10, 267834), (12, 223195), (14, 191310), (15, 178556), (20, 133917), (21, 127540), (28, 95655), (30, 89278), (35, 76524), (42, 63770), (49, 54660), (60, 44639), (70, 38262), (84, 31885), (98, 27330), (105, 25508), (140, 19131), (147, 18220), (196, 13665), (210, 12754), (245, 10932), (294, 9110), (420, 6377), (490, 5466), (588, 4555), (735, 3644), (911, 2940), (980, 2733), (1470, 1822)]