20761160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1399}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 33670840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1399, 1484, 1855, 2120, 2798, 2968, 3710, 5596, 6995, 7420, 9793, 11192, 13990, 14840, 19586, 27980, 39172, 48965, 55960, 74147, 78344, 97930, 148294, 195860, 296588, 370735, 391720, 519029, 593176, 741470, 1038058, 1482940, 2076116, 2595145, 2965880, 4152232, 5190290, 10380580, 20761160]

約数ペア:

[(1, 20761160), (2, 10380580), (4, 5190290), (5, 4152232), (7, 2965880), (8, 2595145), (10, 2076116), (14, 1482940), (20, 1038058), (28, 741470), (35, 593176), (40, 519029), (53, 391720), (56, 370735), (70, 296588), (106, 195860), (140, 148294), (212, 97930), (265, 78344), (280, 74147), (371, 55960), (424, 48965), (530, 39172), (742, 27980), (1060, 19586), (1399, 14840), (1484, 13990), (1855, 11192), (2120, 9793), (2798, 7420), (2968, 6995), (3710, 5596)]