31333720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 83980800

約数和(自身を除く): 52647080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 59, 68, 71, 85, 88, 110, 118, 136, 142, 170, 187, 220, 236, 284, 295, 340, 355, 374, 440, 472, 568, 590, 649, 680, 710, 748, 781, 935, 1003, 1180, 1207, 1298, 1420, 1496, 1562, 1870, 2006, 2360, 2414, 2596, 2840, 3124, 3245, 3740, 3905, 4012, 4189, 4828, 5015, 5192, 6035, 6248, 6490, 7480, 7810, 8024, 8378, 9656, 10030, 11033, 12070, 12980, 13277, 15620, 16756, 20060, 20945, 22066, 24140, 25960, 26554, 31240, 33512, 40120, 41890, 44132, 46079, 48280, 53108, 55165, 66385, 71213, 83780, 88264, 92158, 106216, 110330, 132770, 142426, 167560, 184316, 220660, 230395, 265540, 284852, 356065, 368632, 441320, 460790, 531080, 569704, 712130, 783343, 921580, 1424260, 1566686, 1843160, 2848520, 3133372, 3916715, 6266744, 7833430, 15666860, 31333720]

約数ペア:

[(1, 31333720), (2, 15666860), (4, 7833430), (5, 6266744), (8, 3916715), (10, 3133372), (11, 2848520), (17, 1843160), (20, 1566686), (22, 1424260), (34, 921580), (40, 783343), (44, 712130), (55, 569704), (59, 531080), (68, 460790), (71, 441320), (85, 368632), (88, 356065), (110, 284852), (118, 265540), (136, 230395), (142, 220660), (170, 184316), (187, 167560), (220, 142426), (236, 132770), (284, 110330), (295, 106216), (340, 92158), (355, 88264), (374, 83780), (440, 71213), (472, 66385), (568, 55165), (590, 53108), (649, 48280), (680, 46079), (710, 44132), (748, 41890), (781, 40120), (935, 33512), (1003, 31240), (1180, 26554), (1207, 25960), (1298, 24140), (1420, 22066), (1496, 20945), (1562, 20060), (1870, 16756), (2006, 15620), (2360, 13277), (2414, 12980), (2596, 12070), (2840, 11033), (3124, 10030), (3245, 9656), (3740, 8378), (3905, 8024), (4012, 7810), (4189, 7480), (4828, 6490), (5015, 6248), (5192, 6035)]