17517980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 38060064

約数和(自身を除く): 20542084

約数列:

[1, 2, 4, 5, 10, 20, 61, 83, 122, 166, 173, 244, 305, 332, 346, 415, 610, 692, 830, 865, 1220, 1660, 1730, 3460, 5063, 10126, 10553, 14359, 20252, 21106, 25315, 28718, 42212, 50630, 52765, 57436, 71795, 101260, 105530, 143590, 211060, 287180, 875899, 1751798, 3503596, 4379495, 8758990, 17517980]

約数ペア:

[(1, 17517980), (2, 8758990), (4, 4379495), (5, 3503596), (10, 1751798), (20, 875899), (61, 287180), (83, 211060), (122, 143590), (166, 105530), (173, 101260), (244, 71795), (305, 57436), (332, 52765), (346, 50630), (415, 42212), (610, 28718), (692, 25315), (830, 21106), (865, 20252), (1220, 14359), (1660, 10553), (1730, 10126), (3460, 5063)]