19003980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 37895604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 47, 60, 69, 92, 94, 115, 138, 141, 188, 230, 235, 276, 282, 293, 345, 460, 470, 564, 586, 690, 705, 879, 940, 1081, 1172, 1380, 1410, 1465, 1758, 2162, 2820, 2930, 3243, 3516, 4324, 4395, 5405, 5860, 6486, 6739, 8790, 10810, 12972, 13478, 13771, 16215, 17580, 20217, 21620, 26956, 27542, 32430, 33695, 40434, 41313, 55084, 64860, 67390, 68855, 80868, 82626, 101085, 134780, 137710, 165252, 202170, 206565, 275420, 316733, 404340, 413130, 633466, 826260, 950199, 1266932, 1583665, 1900398, 3167330, 3800796, 4750995, 6334660, 9501990, 19003980]

約数ペア:

[(1, 19003980), (2, 9501990), (3, 6334660), (4, 4750995), (5, 3800796), (6, 3167330), (10, 1900398), (12, 1583665), (15, 1266932), (20, 950199), (23, 826260), (30, 633466), (46, 413130), (47, 404340), (60, 316733), (69, 275420), (92, 206565), (94, 202170), (115, 165252), (138, 137710), (141, 134780), (188, 101085), (230, 82626), (235, 80868), (276, 68855), (282, 67390), (293, 64860), (345, 55084), (460, 41313), (470, 40434), (564, 33695), (586, 32430), (690, 27542), (705, 26956), (879, 21620), (940, 20217), (1081, 17580), (1172, 16215), (1380, 13771), (1410, 13478), (1465, 12972), (1758, 10810), (2162, 8790), (2820, 6739), (2930, 6486), (3243, 5860), (3516, 5405), (4324, 4395)]