66752920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 172730880

約数和(自身を除く): 105977960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 41, 52, 62, 65, 82, 101, 104, 124, 130, 155, 164, 202, 205, 248, 260, 310, 328, 403, 404, 410, 505, 520, 533, 620, 806, 808, 820, 1010, 1066, 1240, 1271, 1313, 1612, 1640, 2015, 2020, 2132, 2542, 2626, 2665, 3131, 3224, 4030, 4040, 4141, 4264, 5084, 5252, 5330, 6262, 6355, 6565, 8060, 8282, 10168, 10504, 10660, 12524, 12710, 13130, 15655, 16120, 16523, 16564, 20705, 21320, 25048, 25420, 26260, 31310, 33046, 33128, 40703, 41410, 50840, 52520, 53833, 62620, 66092, 81406, 82615, 82820, 107666, 125240, 128371, 132184, 162812, 165230, 165640, 203515, 215332, 256742, 269165, 325624, 330460, 407030, 430664, 513484, 538330, 641855, 660920, 814060, 1026968, 1076660, 1283710, 1628120, 1668823, 2153320, 2567420, 3337646, 5134840, 6675292, 8344115, 13350584, 16688230, 33376460, 66752920]

約数ペア:

[(1, 66752920), (2, 33376460), (4, 16688230), (5, 13350584), (8, 8344115), (10, 6675292), (13, 5134840), (20, 3337646), (26, 2567420), (31, 2153320), (40, 1668823), (41, 1628120), (52, 1283710), (62, 1076660), (65, 1026968), (82, 814060), (101, 660920), (104, 641855), (124, 538330), (130, 513484), (155, 430664), (164, 407030), (202, 330460), (205, 325624), (248, 269165), (260, 256742), (310, 215332), (328, 203515), (403, 165640), (404, 165230), (410, 162812), (505, 132184), (520, 128371), (533, 125240), (620, 107666), (806, 82820), (808, 82615), (820, 81406), (1010, 66092), (1066, 62620), (1240, 53833), (1271, 52520), (1313, 50840), (1612, 41410), (1640, 40703), (2015, 33128), (2020, 33046), (2132, 31310), (2542, 26260), (2626, 25420), (2665, 25048), (3131, 21320), (3224, 20705), (4030, 16564), (4040, 16523), (4141, 16120), (4264, 15655), (5084, 13130), (5252, 12710), (5330, 12524), (6262, 10660), (6355, 10504), (6565, 10168), (8060, 8282)]