19896420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 60641280

約数和(自身を除く): 40744860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 380, 465, 563, 570, 589, 620, 930, 1126, 1140, 1178, 1689, 1767, 1860, 2252, 2356, 2815, 2945, 3378, 3534, 5630, 5890, 6756, 7068, 8445, 8835, 10697, 11260, 11780, 16890, 17453, 17670, 21394, 32091, 33780, 34906, 35340, 42788, 52359, 53485, 64182, 69812, 87265, 104718, 106970, 128364, 160455, 174530, 209436, 213940, 261795, 320910, 331607, 349060, 523590, 641820, 663214, 994821, 1047180, 1326428, 1658035, 1989642, 3316070, 3979284, 4974105, 6632140, 9948210, 19896420]

約数ペア:

[(1, 19896420), (2, 9948210), (3, 6632140), (4, 4974105), (5, 3979284), (6, 3316070), (10, 1989642), (12, 1658035), (15, 1326428), (19, 1047180), (20, 994821), (30, 663214), (31, 641820), (38, 523590), (57, 349060), (60, 331607), (62, 320910), (76, 261795), (93, 213940), (95, 209436), (114, 174530), (124, 160455), (155, 128364), (186, 106970), (190, 104718), (228, 87265), (285, 69812), (310, 64182), (372, 53485), (380, 52359), (465, 42788), (563, 35340), (570, 34906), (589, 33780), (620, 32091), (930, 21394), (1126, 17670), (1140, 17453), (1178, 16890), (1689, 11780), (1767, 11260), (1860, 10697), (2252, 8835), (2356, 8445), (2815, 7068), (2945, 6756), (3378, 5890), (3534, 5630)]