138289760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:629

約数の個数: 144

約数和(自身を含む): 392999040

約数和(自身を除く): 254709280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 392, 434, 490, 496, 560, 569, 620, 784, 868, 980, 992, 1085, 1120, 1138, 1240, 1519, 1568, 1736, 1960, 2170, 2276, 2480, 2845, 3038, 3472, 3920, 3983, 4340, 4552, 4960, 5690, 6076, 6944, 7595, 7840, 7966, 8680, 9104, 11380, 12152, 15190, 15932, 17360, 17639, 18208, 19915, 22760, 24304, 27881, 30380, 31864, 34720, 35278, 39830, 45520, 48608, 55762, 60760, 63728, 70556, 79660, 88195, 91040, 111524, 121520, 123473, 127456, 139405, 141112, 159320, 176390, 223048, 243040, 246946, 278810, 282224, 318640, 352780, 446096, 493892, 557620, 564448, 617365, 637280, 705560, 864311, 892192, 987784, 1115240, 1234730, 1411120, 1728622, 1975568, 2230480, 2469460, 2822240, 3457244, 3951136, 4321555, 4460960, 4938920, 6914488, 8643110, 9877840, 13828976, 17286220, 19755680, 27657952, 34572440, 69144880, 138289760]

約数ペア:

[(1, 138289760), (2, 69144880), (4, 34572440), (5, 27657952), (7, 19755680), (8, 17286220), (10, 13828976), (14, 9877840), (16, 8643110), (20, 6914488), (28, 4938920), (31, 4460960), (32, 4321555), (35, 3951136), (40, 3457244), (49, 2822240), (56, 2469460), (62, 2230480), (70, 1975568), (80, 1728622), (98, 1411120), (112, 1234730), (124, 1115240), (140, 987784), (155, 892192), (160, 864311), (196, 705560), (217, 637280), (224, 617365), (245, 564448), (248, 557620), (280, 493892), (310, 446096), (392, 352780), (434, 318640), (490, 282224), (496, 278810), (560, 246946), (569, 243040), (620, 223048), (784, 176390), (868, 159320), (980, 141112), (992, 139405), (1085, 127456), (1120, 123473), (1138, 121520), (1240, 111524), (1519, 91040), (1568, 88195), (1736, 79660), (1960, 70556), (2170, 63728), (2276, 60760), (2480, 55762), (2845, 48608), (3038, 45520), (3472, 39830), (3920, 35278), (3983, 34720), (4340, 31864), (4552, 30380), (4960, 27881), (5690, 24304), (6076, 22760), (6944, 19915), (7595, 18208), (7840, 17639), (7966, 17360), (8680, 15932), (9104, 15190), (11380, 12152)]