20944350

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 144

約数和(自身を含む): 65963040

約数和(自身を除く): 45018690

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 61, 63, 70, 75, 90, 105, 109, 122, 126, 150, 175, 183, 210, 218, 225, 305, 315, 327, 350, 366, 427, 450, 525, 545, 549, 610, 630, 654, 763, 854, 915, 981, 1050, 1090, 1098, 1281, 1525, 1526, 1575, 1635, 1830, 1962, 2135, 2289, 2562, 2725, 2745, 3050, 3150, 3270, 3815, 3843, 4270, 4575, 4578, 4905, 5450, 5490, 6405, 6649, 6867, 7630, 7686, 8175, 9150, 9810, 10675, 11445, 12810, 13298, 13725, 13734, 16350, 19075, 19215, 19947, 21350, 22890, 24525, 27450, 32025, 33245, 34335, 38150, 38430, 39894, 46543, 49050, 57225, 59841, 64050, 66490, 68670, 93086, 96075, 99735, 114450, 119682, 139629, 166225, 171675, 192150, 199470, 232715, 279258, 299205, 332450, 343350, 418887, 465430, 498675, 598410, 698145, 837774, 997350, 1163575, 1396290, 1496025, 2094435, 2327150, 2992050, 3490725, 4188870, 6981450, 10472175, 20944350]

約数ペア:

[(1, 20944350), (2, 10472175), (3, 6981450), (5, 4188870), (6, 3490725), (7, 2992050), (9, 2327150), (10, 2094435), (14, 1496025), (15, 1396290), (18, 1163575), (21, 997350), (25, 837774), (30, 698145), (35, 598410), (42, 498675), (45, 465430), (50, 418887), (61, 343350), (63, 332450), (70, 299205), (75, 279258), (90, 232715), (105, 199470), (109, 192150), (122, 171675), (126, 166225), (150, 139629), (175, 119682), (183, 114450), (210, 99735), (218, 96075), (225, 93086), (305, 68670), (315, 66490), (327, 64050), (350, 59841), (366, 57225), (427, 49050), (450, 46543), (525, 39894), (545, 38430), (549, 38150), (610, 34335), (630, 33245), (654, 32025), (763, 27450), (854, 24525), (915, 22890), (981, 21350), (1050, 19947), (1090, 19215), (1098, 19075), (1281, 16350), (1525, 13734), (1526, 13725), (1575, 13298), (1635, 12810), (1830, 11445), (1962, 10675), (2135, 9810), (2289, 9150), (2562, 8175), (2725, 7686), (2745, 7630), (3050, 6867), (3150, 6649), (3270, 6405), (3815, 5490), (3843, 5450), (4270, 4905), (4575, 4578)]