19973940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2503}}^1$

素因数の和:2541

約数の個数: 96

約数和(自身を含む): 67307520

約数和(自身を除く): 47333580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2503, 2660, 3990, 5006, 7509, 7980, 10012, 12515, 15018, 17521, 25030, 30036, 35042, 37545, 47557, 50060, 52563, 70084, 75090, 87605, 95114, 105126, 142671, 150180, 175210, 190228, 210252, 237785, 262815, 285342, 332899, 350420, 475570, 525630, 570684, 665798, 713355, 951140, 998697, 1051260, 1331596, 1426710, 1664495, 1997394, 2853420, 3328990, 3994788, 4993485, 6657980, 9986970, 19973940]

約数ペア:

[(1, 19973940), (2, 9986970), (3, 6657980), (4, 4993485), (5, 3994788), (6, 3328990), (7, 2853420), (10, 1997394), (12, 1664495), (14, 1426710), (15, 1331596), (19, 1051260), (20, 998697), (21, 951140), (28, 713355), (30, 665798), (35, 570684), (38, 525630), (42, 475570), (57, 350420), (60, 332899), (70, 285342), (76, 262815), (84, 237785), (95, 210252), (105, 190228), (114, 175210), (133, 150180), (140, 142671), (190, 105126), (210, 95114), (228, 87605), (266, 75090), (285, 70084), (380, 52563), (399, 50060), (420, 47557), (532, 37545), (570, 35042), (665, 30036), (798, 25030), (1140, 17521), (1330, 15018), (1596, 12515), (1995, 10012), (2503, 7980), (2660, 7509), (3990, 5006)]