865627140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{294431}}^1$

素因数の和:294457

約数の個数: 72

約数和(自身を含む): 2819480832

約数和(自身を除く): 1953853692

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, 980, 1470, 2940, 294431, 588862, 883293, 1177724, 1472155, 1766586, 2061017, 2944310, 3533172, 4122034, 4416465, 5888620, 6183051, 8244068, 8832930, 10305085, 12366102, 14427119, 17665860, 20610170, 24732204, 28854238, 30915255, 41220340, 43281357, 57708476, 61830510, 72135595, 86562714, 123661020, 144271190, 173125428, 216406785, 288542380, 432813570, 865627140]

約数ペア:

[(1, 865627140), (2, 432813570), (3, 288542380), (4, 216406785), (5, 173125428), (6, 144271190), (7, 123661020), (10, 86562714), (12, 72135595), (14, 61830510), (15, 57708476), (20, 43281357), (21, 41220340), (28, 30915255), (30, 28854238), (35, 24732204), (42, 20610170), (49, 17665860), (60, 14427119), (70, 12366102), (84, 10305085), (98, 8832930), (105, 8244068), (140, 6183051), (147, 5888620), (196, 4416465), (210, 4122034), (245, 3533172), (294, 2944310), (420, 2061017), (490, 1766586), (588, 1472155), (735, 1177724), (980, 883293), (1470, 588862), (2940, 294431)]