1390304860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{27509}}^1$

素因数の和:27563

約数の個数: 72

約数和(自身を含む): 3521720160

約数和(自身を除く): 2131415300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 665, 722, 1330, 1444, 1805, 2527, 2660, 3610, 5054, 7220, 10108, 12635, 25270, 27509, 50540, 55018, 110036, 137545, 192563, 275090, 385126, 522671, 550180, 770252, 962815, 1045342, 1925630, 2090684, 2613355, 3658697, 3851260, 5226710, 7317394, 9930749, 10453420, 14634788, 18293485, 19861498, 36586970, 39722996, 49653745, 69515243, 73173940, 99307490, 139030486, 198614980, 278060972, 347576215, 695152430, 1390304860]

約数ペア:

[(1, 1390304860), (2, 695152430), (4, 347576215), (5, 278060972), (7, 198614980), (10, 139030486), (14, 99307490), (19, 73173940), (20, 69515243), (28, 49653745), (35, 39722996), (38, 36586970), (70, 19861498), (76, 18293485), (95, 14634788), (133, 10453420), (140, 9930749), (190, 7317394), (266, 5226710), (361, 3851260), (380, 3658697), (532, 2613355), (665, 2090684), (722, 1925630), (1330, 1045342), (1444, 962815), (1805, 770252), (2527, 550180), (2660, 522671), (3610, 385126), (5054, 275090), (7220, 192563), (10108, 137545), (12635, 110036), (25270, 55018), (27509, 50540)]