28830620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 79365888

約数和(自身を除く): 50535268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 73, 91, 98, 124, 130, 140, 146, 155, 182, 196, 217, 245, 260, 292, 310, 364, 365, 403, 434, 455, 490, 511, 620, 637, 730, 806, 868, 910, 949, 980, 1022, 1085, 1274, 1460, 1519, 1612, 1820, 1898, 2015, 2044, 2170, 2263, 2548, 2555, 2821, 3038, 3185, 3577, 3796, 4030, 4340, 4526, 4745, 5110, 5642, 6076, 6370, 6643, 7154, 7595, 8060, 9052, 9490, 10220, 11284, 11315, 12740, 13286, 14105, 14308, 15190, 15841, 17885, 18980, 19747, 22630, 26572, 28210, 29419, 30380, 31682, 33215, 35770, 39494, 45260, 46501, 56420, 58838, 63364, 66430, 71540, 78988, 79205, 93002, 98735, 110887, 117676, 132860, 147095, 158410, 186004, 197470, 205933, 221774, 232505, 294190, 316820, 394940, 411866, 443548, 465010, 554435, 588380, 823732, 930020, 1029665, 1108870, 1441531, 2059330, 2217740, 2883062, 4118660, 5766124, 7207655, 14415310, 28830620]

約数ペア:

[(1, 28830620), (2, 14415310), (4, 7207655), (5, 5766124), (7, 4118660), (10, 2883062), (13, 2217740), (14, 2059330), (20, 1441531), (26, 1108870), (28, 1029665), (31, 930020), (35, 823732), (49, 588380), (52, 554435), (62, 465010), (65, 443548), (70, 411866), (73, 394940), (91, 316820), (98, 294190), (124, 232505), (130, 221774), (140, 205933), (146, 197470), (155, 186004), (182, 158410), (196, 147095), (217, 132860), (245, 117676), (260, 110887), (292, 98735), (310, 93002), (364, 79205), (365, 78988), (403, 71540), (434, 66430), (455, 63364), (490, 58838), (511, 56420), (620, 46501), (637, 45260), (730, 39494), (806, 35770), (868, 33215), (910, 31682), (949, 30380), (980, 29419), (1022, 28210), (1085, 26572), (1274, 22630), (1460, 19747), (1519, 18980), (1612, 17885), (1820, 15841), (1898, 15190), (2015, 14308), (2044, 14105), (2170, 13286), (2263, 12740), (2548, 11315), (2555, 11284), (2821, 10220), (3038, 9490), (3185, 9052), (3577, 8060), (3796, 7595), (4030, 7154), (4340, 6643), (4526, 6370), (4745, 6076), (5110, 5642)]