309956240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20719}}^1$

素因数の和:20760

約数の個数: 80

約数和(自身を含む): 832446720

約数和(自身を除く): 522490480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 14960, 20719, 41438, 82876, 103595, 165752, 207190, 227909, 331504, 352223, 414380, 455818, 704446, 828760, 911636, 1139545, 1408892, 1657520, 1761115, 1823272, 2279090, 2817784, 3522230, 3646544, 3874453, 4558180, 5635568, 7044460, 7748906, 9116360, 14088920, 15497812, 18232720, 19372265, 28177840, 30995624, 38744530, 61991248, 77489060, 154978120, 309956240]

約数ペア:

[(1, 309956240), (2, 154978120), (4, 77489060), (5, 61991248), (8, 38744530), (10, 30995624), (11, 28177840), (16, 19372265), (17, 18232720), (20, 15497812), (22, 14088920), (34, 9116360), (40, 7748906), (44, 7044460), (55, 5635568), (68, 4558180), (80, 3874453), (85, 3646544), (88, 3522230), (110, 2817784), (136, 2279090), (170, 1823272), (176, 1761115), (187, 1657520), (220, 1408892), (272, 1139545), (340, 911636), (374, 828760), (440, 704446), (680, 455818), (748, 414380), (880, 352223), (935, 331504), (1360, 227909), (1496, 207190), (1870, 165752), (2992, 103595), (3740, 82876), (7480, 41438), (14960, 20719)]