61916120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{557}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 159900480

約数和(自身を除く): 97984360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 397, 557, 794, 1114, 1588, 1985, 2228, 2779, 2785, 3176, 3899, 3970, 4456, 5558, 5570, 7798, 7940, 11116, 11140, 13895, 15596, 15880, 19495, 22232, 22280, 27790, 31192, 38990, 55580, 77980, 111160, 155960, 221129, 442258, 884516, 1105645, 1547903, 1769032, 2211290, 3095806, 4422580, 6191612, 7739515, 8845160, 12383224, 15479030, 30958060, 61916120]

約数ペア:

[(1, 61916120), (2, 30958060), (4, 15479030), (5, 12383224), (7, 8845160), (8, 7739515), (10, 6191612), (14, 4422580), (20, 3095806), (28, 2211290), (35, 1769032), (40, 1547903), (56, 1105645), (70, 884516), (140, 442258), (280, 221129), (397, 155960), (557, 111160), (794, 77980), (1114, 55580), (1588, 38990), (1985, 31192), (2228, 27790), (2779, 22280), (2785, 22232), (3176, 19495), (3899, 15880), (3970, 15596), (4456, 13895), (5558, 11140), (5570, 11116), (7798, 7940)]