268109720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{941}}^1$

素因数の和:1388

約数の個数: 64

約数和(自身を含む): 640936800

約数和(自身を除く): 372827080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 419, 680, 838, 941, 1676, 1882, 2095, 3352, 3764, 4190, 4705, 7123, 7528, 8380, 9410, 14246, 15997, 16760, 18820, 28492, 31994, 35615, 37640, 56984, 63988, 71230, 79985, 127976, 142460, 159970, 284920, 319940, 394279, 639880, 788558, 1577116, 1971395, 3154232, 3942790, 6702743, 7885580, 13405486, 15771160, 26810972, 33513715, 53621944, 67027430, 134054860, 268109720]

約数ペア:

[(1, 268109720), (2, 134054860), (4, 67027430), (5, 53621944), (8, 33513715), (10, 26810972), (17, 15771160), (20, 13405486), (34, 7885580), (40, 6702743), (68, 3942790), (85, 3154232), (136, 1971395), (170, 1577116), (340, 788558), (419, 639880), (680, 394279), (838, 319940), (941, 284920), (1676, 159970), (1882, 142460), (2095, 127976), (3352, 79985), (3764, 71230), (4190, 63988), (4705, 56984), (7123, 37640), (7528, 35615), (8380, 31994), (9410, 28492), (14246, 18820), (15997, 16760)]