257423220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2333}}^1$

素因数の和:2961

約数の個数: 72

約数和(自身を含む): 782459496

約数和(自身を除く): 525036276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 613, 1226, 1839, 2333, 2452, 3065, 3678, 4666, 5517, 6130, 6999, 7356, 9195, 9332, 11034, 11665, 12260, 13998, 18390, 20997, 22068, 23330, 27585, 27996, 34995, 36780, 41994, 46660, 55170, 69990, 83988, 104985, 110340, 139980, 209970, 419940, 1430129, 2860258, 4290387, 5720516, 7150645, 8580774, 12871161, 14301290, 17161548, 21451935, 25742322, 28602580, 42903870, 51484644, 64355805, 85807740, 128711610, 257423220]

約数ペア:

[(1, 257423220), (2, 128711610), (3, 85807740), (4, 64355805), (5, 51484644), (6, 42903870), (9, 28602580), (10, 25742322), (12, 21451935), (15, 17161548), (18, 14301290), (20, 12871161), (30, 8580774), (36, 7150645), (45, 5720516), (60, 4290387), (90, 2860258), (180, 1430129), (613, 419940), (1226, 209970), (1839, 139980), (2333, 110340), (2452, 104985), (3065, 83988), (3678, 69990), (4666, 55170), (5517, 46660), (6130, 41994), (6999, 36780), (7356, 34995), (9195, 27996), (9332, 27585), (11034, 23330), (11665, 22068), (12260, 20997), (13998, 18390)]