19001970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 54054000

約数和(自身を除く): 35052030

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 109, 117, 130, 149, 195, 218, 234, 298, 327, 390, 447, 545, 585, 654, 745, 894, 981, 1090, 1170, 1341, 1417, 1490, 1635, 1937, 1962, 2235, 2682, 2834, 3270, 3874, 4251, 4470, 4905, 5811, 6705, 7085, 8502, 9685, 9810, 11622, 12753, 13410, 14170, 16241, 17433, 19370, 21255, 25506, 29055, 32482, 34866, 42510, 48723, 58110, 63765, 81205, 87165, 97446, 127530, 146169, 162410, 174330, 211133, 243615, 292338, 422266, 487230, 633399, 730845, 1055665, 1266798, 1461690, 1900197, 2111330, 3166995, 3800394, 6333990, 9500985, 19001970]

約数ペア:

[(1, 19001970), (2, 9500985), (3, 6333990), (5, 3800394), (6, 3166995), (9, 2111330), (10, 1900197), (13, 1461690), (15, 1266798), (18, 1055665), (26, 730845), (30, 633399), (39, 487230), (45, 422266), (65, 292338), (78, 243615), (90, 211133), (109, 174330), (117, 162410), (130, 146169), (149, 127530), (195, 97446), (218, 87165), (234, 81205), (298, 63765), (327, 58110), (390, 48723), (447, 42510), (545, 34866), (585, 32482), (654, 29055), (745, 25506), (894, 21255), (981, 19370), (1090, 17433), (1170, 16241), (1341, 14170), (1417, 13410), (1490, 12753), (1635, 11622), (1937, 9810), (1962, 9685), (2235, 8502), (2682, 7085), (2834, 6705), (3270, 5811), (3874, 4905), (4251, 4470)]