18959600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 51663360

約数和(自身を除く): 32703760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 139, 155, 176, 200, 220, 248, 275, 278, 310, 341, 400, 440, 496, 550, 556, 620, 682, 695, 775, 880, 1100, 1112, 1240, 1364, 1390, 1529, 1550, 1705, 2200, 2224, 2480, 2728, 2780, 3058, 3100, 3410, 3475, 4309, 4400, 5456, 5560, 6116, 6200, 6820, 6950, 7645, 8525, 8618, 11120, 12232, 12400, 13640, 13900, 15290, 17050, 17236, 21545, 24464, 27280, 27800, 30580, 34100, 34472, 38225, 43090, 47399, 55600, 61160, 68200, 68944, 76450, 86180, 94798, 107725, 122320, 136400, 152900, 172360, 189596, 215450, 236995, 305800, 344720, 379192, 430900, 473990, 611600, 758384, 861800, 947980, 1184975, 1723600, 1895960, 2369950, 3791920, 4739900, 9479800, 18959600]

約数ペア:

[(1, 18959600), (2, 9479800), (4, 4739900), (5, 3791920), (8, 2369950), (10, 1895960), (11, 1723600), (16, 1184975), (20, 947980), (22, 861800), (25, 758384), (31, 611600), (40, 473990), (44, 430900), (50, 379192), (55, 344720), (62, 305800), (80, 236995), (88, 215450), (100, 189596), (110, 172360), (124, 152900), (139, 136400), (155, 122320), (176, 107725), (200, 94798), (220, 86180), (248, 76450), (275, 68944), (278, 68200), (310, 61160), (341, 55600), (400, 47399), (440, 43090), (496, 38225), (550, 34472), (556, 34100), (620, 30580), (682, 27800), (695, 27280), (775, 24464), (880, 21545), (1100, 17236), (1112, 17050), (1240, 15290), (1364, 13900), (1390, 13640), (1529, 12400), (1550, 12232), (1705, 11120), (2200, 8618), (2224, 8525), (2480, 7645), (2728, 6950), (2780, 6820), (3058, 6200), (3100, 6116), (3410, 5560), (3475, 5456), (4309, 4400)]