28991820

素因数分解:

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

素因数の和:176

約数の個数: 192

約数和(自身を含む): 99348480

約数和(自身を除く): 70356660

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 31, 33, 39, 44, 52, 55, 60, 62, 65, 66, 78, 93, 109, 110, 124, 130, 132, 143, 155, 156, 165, 186, 195, 218, 220, 260, 286, 310, 327, 330, 341, 372, 390, 403, 429, 436, 465, 545, 572, 620, 654, 660, 682, 715, 780, 806, 858, 930, 1023, 1090, 1199, 1209, 1308, 1364, 1417, 1430, 1612, 1635, 1705, 1716, 1860, 2015, 2046, 2145, 2180, 2398, 2418, 2834, 2860, 3270, 3379, 3410, 3597, 4030, 4092, 4251, 4290, 4433, 4796, 4836, 5115, 5668, 5995, 6045, 6540, 6758, 6820, 7085, 7194, 8060, 8502, 8580, 8866, 10137, 10230, 11990, 12090, 13299, 13516, 14170, 14388, 15587, 16895, 17004, 17732, 17985, 20274, 20460, 21255, 22165, 23980, 24180, 26598, 28340, 31174, 33790, 35970, 37169, 40548, 42510, 43927, 44330, 46761, 50685, 53196, 62348, 66495, 67580, 71940, 74338, 77935, 85020, 87854, 88660, 93522, 101370, 111507, 131781, 132990, 148676, 155870, 175708, 185845, 187044, 202740, 219635, 223014, 233805, 263562, 265980, 311740, 371690, 439270, 446028, 467610, 483197, 527124, 557535, 658905, 743380, 878540, 935220, 966394, 1115070, 1317810, 1449591, 1932788, 2230140, 2415985, 2635620, 2899182, 4831970, 5798364, 7247955, 9663940, 14495910, 28991820]

約数ペア:

[(1, 28991820), (2, 14495910), (3, 9663940), (4, 7247955), (5, 5798364), (6, 4831970), (10, 2899182), (11, 2635620), (12, 2415985), (13, 2230140), (15, 1932788), (20, 1449591), (22, 1317810), (26, 1115070), (30, 966394), (31, 935220), (33, 878540), (39, 743380), (44, 658905), (52, 557535), (55, 527124), (60, 483197), (62, 467610), (65, 446028), (66, 439270), (78, 371690), (93, 311740), (109, 265980), (110, 263562), (124, 233805), (130, 223014), (132, 219635), (143, 202740), (155, 187044), (156, 185845), (165, 175708), (186, 155870), (195, 148676), (218, 132990), (220, 131781), (260, 111507), (286, 101370), (310, 93522), (327, 88660), (330, 87854), (341, 85020), (372, 77935), (390, 74338), (403, 71940), (429, 67580), (436, 66495), (465, 62348), (545, 53196), (572, 50685), (620, 46761), (654, 44330), (660, 43927), (682, 42510), (715, 40548), (780, 37169), (806, 35970), (858, 33790), (930, 31174), (1023, 28340), (1090, 26598), (1199, 24180), (1209, 23980), (1308, 22165), (1364, 21255), (1417, 20460), (1430, 20274), (1612, 17985), (1635, 17732), (1705, 17004), (1716, 16895), (1860, 15587), (2015, 14388), (2046, 14170), (2145, 13516), (2180, 13299), (2398, 12090), (2418, 11990), (2834, 10230), (2860, 10137), (3270, 8866), (3379, 8580), (3410, 8502), (3597, 8060), (4030, 7194), (4092, 7085), (4251, 6820), (4290, 6758), (4433, 6540), (4796, 6045), (4836, 5995), (5115, 5668)]