256919910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1429}}^1$

素因数の和:1913

約数の個数: 64

約数和(自身を含む): 665945280

約数和(自身を除く): 409025370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 461, 922, 1383, 1429, 2305, 2766, 2858, 4287, 4610, 5993, 6915, 7145, 8574, 11986, 13830, 14290, 17979, 18577, 21435, 29965, 35958, 37154, 42870, 55731, 59930, 89895, 92885, 111462, 179790, 185770, 278655, 557310, 658769, 1317538, 1976307, 3293845, 3952614, 6587690, 8563997, 9881535, 17127994, 19763070, 25691991, 42819985, 51383982, 85639970, 128459955, 256919910]

約数ペア:

[(1, 256919910), (2, 128459955), (3, 85639970), (5, 51383982), (6, 42819985), (10, 25691991), (13, 19763070), (15, 17127994), (26, 9881535), (30, 8563997), (39, 6587690), (65, 3952614), (78, 3293845), (130, 1976307), (195, 1317538), (390, 658769), (461, 557310), (922, 278655), (1383, 185770), (1429, 179790), (2305, 111462), (2766, 92885), (2858, 89895), (4287, 59930), (4610, 55731), (5993, 42870), (6915, 37154), (7145, 35958), (8574, 29965), (11986, 21435), (13830, 18577), (14290, 17979)]