389635840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{27673}}^1$

素因数の和:27705

約数の個数: 72

約数和(自身を含む): 1018181808

約数和(自身を除く): 628545968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 27673, 55346, 110692, 138365, 221384, 276730, 304403, 442768, 553460, 608806, 885536, 1106920, 1217612, 1522015, 1771072, 2213840, 2435224, 3044030, 3542144, 4427680, 4870448, 6088060, 7084288, 8855360, 9740896, 12176120, 17710720, 19481792, 24352240, 35421440, 38963584, 48704480, 77927168, 97408960, 194817920, 389635840]

約数ペア:

[(1, 389635840), (2, 194817920), (4, 97408960), (5, 77927168), (8, 48704480), (10, 38963584), (11, 35421440), (16, 24352240), (20, 19481792), (22, 17710720), (32, 12176120), (40, 9740896), (44, 8855360), (55, 7084288), (64, 6088060), (80, 4870448), (88, 4427680), (110, 3542144), (128, 3044030), (160, 2435224), (176, 2213840), (220, 1771072), (256, 1522015), (320, 1217612), (352, 1106920), (440, 885536), (640, 608806), (704, 553460), (880, 442768), (1280, 304403), (1408, 276730), (1760, 221384), (2816, 138365), (3520, 110692), (7040, 55346), (14080, 27673)]