2864540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 7277760

約数和(自身を除く): 4413220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 79, 98, 140, 148, 158, 185, 196, 245, 259, 316, 370, 395, 490, 518, 553, 740, 790, 980, 1036, 1106, 1295, 1580, 1813, 2212, 2590, 2765, 2923, 3626, 3871, 5180, 5530, 5846, 7252, 7742, 9065, 11060, 11692, 14615, 15484, 18130, 19355, 20461, 29230, 36260, 38710, 40922, 58460, 77420, 81844, 102305, 143227, 204610, 286454, 409220, 572908, 716135, 1432270, 2864540]

約数ペア:

[(1, 2864540), (2, 1432270), (4, 716135), (5, 572908), (7, 409220), (10, 286454), (14, 204610), (20, 143227), (28, 102305), (35, 81844), (37, 77420), (49, 58460), (70, 40922), (74, 38710), (79, 36260), (98, 29230), (140, 20461), (148, 19355), (158, 18130), (185, 15484), (196, 14615), (245, 11692), (259, 11060), (316, 9065), (370, 7742), (395, 7252), (490, 5846), (518, 5530), (553, 5180), (740, 3871), (790, 3626), (980, 2923), (1036, 2765), (1106, 2590), (1295, 2212), (1580, 1813)]