1404421520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{3607}}^1$

素因数の和:3808

約数の個数: 80

約数和(自身を含む): 3393020928

約数和(自身を除く): 1988599408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 157, 248, 310, 314, 496, 620, 628, 785, 1240, 1256, 1570, 2480, 2512, 3140, 3607, 4867, 6280, 7214, 9734, 12560, 14428, 18035, 19468, 24335, 28856, 36070, 38936, 48670, 57712, 72140, 77872, 97340, 111817, 144280, 194680, 223634, 288560, 389360, 447268, 559085, 566299, 894536, 1118170, 1132598, 1789072, 2236340, 2265196, 2831495, 4472680, 4530392, 5662990, 8945360, 9060784, 11325980, 17555269, 22651960, 35110538, 45303920, 70221076, 87776345, 140442152, 175552690, 280884304, 351105380, 702210760, 1404421520]

約数ペア:

[(1, 1404421520), (2, 702210760), (4, 351105380), (5, 280884304), (8, 175552690), (10, 140442152), (16, 87776345), (20, 70221076), (31, 45303920), (40, 35110538), (62, 22651960), (80, 17555269), (124, 11325980), (155, 9060784), (157, 8945360), (248, 5662990), (310, 4530392), (314, 4472680), (496, 2831495), (620, 2265196), (628, 2236340), (785, 1789072), (1240, 1132598), (1256, 1118170), (1570, 894536), (2480, 566299), (2512, 559085), (3140, 447268), (3607, 389360), (4867, 288560), (6280, 223634), (7214, 194680), (9734, 144280), (12560, 111817), (14428, 97340), (18035, 77872), (19468, 72140), (24335, 57712), (28856, 48670), (36070, 38936)]