21236640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:462

約数の個数: 96

約数和(自身を含む): 67568256

約数和(自身を除く): 46331616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 151, 160, 240, 293, 302, 453, 480, 586, 604, 755, 879, 906, 1172, 1208, 1465, 1510, 1758, 1812, 2265, 2344, 2416, 2930, 3020, 3516, 3624, 4395, 4530, 4688, 4832, 5860, 6040, 7032, 7248, 8790, 9060, 9376, 11720, 12080, 14064, 14496, 17580, 18120, 23440, 24160, 28128, 35160, 36240, 44243, 46880, 70320, 72480, 88486, 132729, 140640, 176972, 221215, 265458, 353944, 442430, 530916, 663645, 707888, 884860, 1061832, 1327290, 1415776, 1769720, 2123664, 2654580, 3539440, 4247328, 5309160, 7078880, 10618320, 21236640]

約数ペア:

[(1, 21236640), (2, 10618320), (3, 7078880), (4, 5309160), (5, 4247328), (6, 3539440), (8, 2654580), (10, 2123664), (12, 1769720), (15, 1415776), (16, 1327290), (20, 1061832), (24, 884860), (30, 707888), (32, 663645), (40, 530916), (48, 442430), (60, 353944), (80, 265458), (96, 221215), (120, 176972), (151, 140640), (160, 132729), (240, 88486), (293, 72480), (302, 70320), (453, 46880), (480, 44243), (586, 36240), (604, 35160), (755, 28128), (879, 24160), (906, 23440), (1172, 18120), (1208, 17580), (1465, 14496), (1510, 14064), (1758, 12080), (1812, 11720), (2265, 9376), (2344, 9060), (2416, 8790), (2930, 7248), (3020, 7032), (3516, 6040), (3624, 5860), (4395, 4832), (4530, 4688)]