20448120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2213}}^1$

素因数の和:2245

約数の個数: 128

約数和(自身を含む): 76515840

約数和(自身を除く): 56067720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2213, 2310, 3080, 4426, 4620, 6639, 8852, 9240, 11065, 13278, 15491, 17704, 22130, 24343, 26556, 30982, 33195, 44260, 46473, 48686, 53112, 61964, 66390, 73029, 77455, 88520, 92946, 97372, 121715, 123928, 132780, 146058, 154910, 170401, 185892, 194744, 232365, 243430, 265560, 292116, 309820, 340802, 365145, 371784, 464730, 486860, 511203, 584232, 619640, 681604, 730290, 852005, 929460, 973720, 1022406, 1363208, 1460580, 1704010, 1858920, 2044812, 2556015, 2921160, 3408020, 4089624, 5112030, 6816040, 10224060, 20448120]

約数ペア:

[(1, 20448120), (2, 10224060), (3, 6816040), (4, 5112030), (5, 4089624), (6, 3408020), (7, 2921160), (8, 2556015), (10, 2044812), (11, 1858920), (12, 1704010), (14, 1460580), (15, 1363208), (20, 1022406), (21, 973720), (22, 929460), (24, 852005), (28, 730290), (30, 681604), (33, 619640), (35, 584232), (40, 511203), (42, 486860), (44, 464730), (55, 371784), (56, 365145), (60, 340802), (66, 309820), (70, 292116), (77, 265560), (84, 243430), (88, 232365), (105, 194744), (110, 185892), (120, 170401), (132, 154910), (140, 146058), (154, 132780), (165, 123928), (168, 121715), (210, 97372), (220, 92946), (231, 88520), (264, 77455), (280, 73029), (308, 66390), (330, 61964), (385, 53112), (420, 48686), (440, 46473), (462, 44260), (616, 33195), (660, 30982), (770, 26556), (840, 24343), (924, 22130), (1155, 17704), (1320, 15491), (1540, 13278), (1848, 11065), (2213, 9240), (2310, 8852), (3080, 6639), (4426, 4620)]