215705440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:480

約数の個数: 96

約数和(自身を含む): 531304704

約数和(自身を除く): 315599264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 157, 160, 248, 277, 310, 314, 496, 554, 620, 628, 785, 992, 1108, 1240, 1256, 1385, 1570, 2216, 2480, 2512, 2770, 3140, 4432, 4867, 4960, 5024, 5540, 6280, 8587, 8864, 9734, 11080, 12560, 17174, 19468, 22160, 24335, 25120, 34348, 38936, 42935, 43489, 44320, 48670, 68696, 77872, 85870, 86978, 97340, 137392, 155744, 171740, 173956, 194680, 217445, 274784, 343480, 347912, 389360, 434890, 686960, 695824, 778720, 869780, 1348159, 1373920, 1391648, 1739560, 2696318, 3479120, 5392636, 6740795, 6958240, 10785272, 13481590, 21570544, 26963180, 43141088, 53926360, 107852720, 215705440]

約数ペア:

[(1, 215705440), (2, 107852720), (4, 53926360), (5, 43141088), (8, 26963180), (10, 21570544), (16, 13481590), (20, 10785272), (31, 6958240), (32, 6740795), (40, 5392636), (62, 3479120), (80, 2696318), (124, 1739560), (155, 1391648), (157, 1373920), (160, 1348159), (248, 869780), (277, 778720), (310, 695824), (314, 686960), (496, 434890), (554, 389360), (620, 347912), (628, 343480), (785, 274784), (992, 217445), (1108, 194680), (1240, 173956), (1256, 171740), (1385, 155744), (1570, 137392), (2216, 97340), (2480, 86978), (2512, 85870), (2770, 77872), (3140, 68696), (4432, 48670), (4867, 44320), (4960, 43489), (5024, 42935), (5540, 38936), (6280, 34348), (8587, 25120), (8864, 24335), (9734, 22160), (11080, 19468), (12560, 17174)]