19327880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 53222400

約数和(自身を除く): 33894520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 109, 110, 124, 130, 143, 155, 218, 220, 248, 260, 286, 310, 341, 403, 436, 440, 520, 545, 572, 620, 682, 715, 806, 872, 1090, 1144, 1199, 1240, 1364, 1417, 1430, 1612, 1705, 2015, 2180, 2398, 2728, 2834, 2860, 3224, 3379, 3410, 4030, 4360, 4433, 4796, 5668, 5720, 5995, 6758, 6820, 7085, 8060, 8866, 9592, 11336, 11990, 13516, 13640, 14170, 15587, 16120, 16895, 17732, 22165, 23980, 27032, 28340, 31174, 33790, 35464, 37169, 43927, 44330, 47960, 56680, 62348, 67580, 74338, 77935, 87854, 88660, 124696, 135160, 148676, 155870, 175708, 177320, 185845, 219635, 297352, 311740, 351416, 371690, 439270, 483197, 623480, 743380, 878540, 966394, 1486760, 1757080, 1932788, 2415985, 3865576, 4831970, 9663940, 19327880]

約数ペア:

[(1, 19327880), (2, 9663940), (4, 4831970), (5, 3865576), (8, 2415985), (10, 1932788), (11, 1757080), (13, 1486760), (20, 966394), (22, 878540), (26, 743380), (31, 623480), (40, 483197), (44, 439270), (52, 371690), (55, 351416), (62, 311740), (65, 297352), (88, 219635), (104, 185845), (109, 177320), (110, 175708), (124, 155870), (130, 148676), (143, 135160), (155, 124696), (218, 88660), (220, 87854), (248, 77935), (260, 74338), (286, 67580), (310, 62348), (341, 56680), (403, 47960), (436, 44330), (440, 43927), (520, 37169), (545, 35464), (572, 33790), (620, 31174), (682, 28340), (715, 27032), (806, 23980), (872, 22165), (1090, 17732), (1144, 16895), (1199, 16120), (1240, 15587), (1364, 14170), (1417, 13640), (1430, 13516), (1612, 11990), (1705, 11336), (2015, 9592), (2180, 8866), (2398, 8060), (2728, 7085), (2834, 6820), (2860, 6758), (3224, 5995), (3379, 5720), (3410, 5668), (4030, 4796), (4360, 4433)]