21350640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5233}}^1$

素因数の和:5266

約数の個数: 80

約数和(自身を含む): 70093728

約数和(自身を除く): 48743088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5233, 10466, 15699, 20932, 26165, 31398, 41864, 52330, 62796, 78495, 83728, 88961, 104660, 125592, 156990, 177922, 209320, 251184, 266883, 313980, 355844, 418640, 444805, 533766, 627960, 711688, 889610, 1067532, 1255920, 1334415, 1423376, 1779220, 2135064, 2668830, 3558440, 4270128, 5337660, 7116880, 10675320, 21350640]

約数ペア:

[(1, 21350640), (2, 10675320), (3, 7116880), (4, 5337660), (5, 4270128), (6, 3558440), (8, 2668830), (10, 2135064), (12, 1779220), (15, 1423376), (16, 1334415), (17, 1255920), (20, 1067532), (24, 889610), (30, 711688), (34, 627960), (40, 533766), (48, 444805), (51, 418640), (60, 355844), (68, 313980), (80, 266883), (85, 251184), (102, 209320), (120, 177922), (136, 156990), (170, 125592), (204, 104660), (240, 88961), (255, 83728), (272, 78495), (340, 62796), (408, 52330), (510, 41864), (680, 31398), (816, 26165), (1020, 20932), (1360, 15699), (2040, 10466), (4080, 5233)]