660275840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7757}}^1$

素因数の和:7802

約数の個数: 128

約数和(自身を含む): 1899158400

約数和(自身を除く): 1238882560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2432, 2660, 3040, 4256, 4480, 5320, 6080, 7757, 8512, 10640, 12160, 15514, 17024, 21280, 31028, 38785, 42560, 54299, 62056, 77570, 85120, 108598, 124112, 147383, 155140, 217196, 248224, 271495, 294766, 310280, 434392, 496448, 542990, 589532, 620560, 736915, 868784, 992896, 1031681, 1085980, 1179064, 1241120, 1473830, 1737568, 2063362, 2171960, 2358128, 2482240, 2947660, 3475136, 4126724, 4343920, 4716256, 4964480, 5158405, 5895320, 6950272, 8253448, 8687840, 9432512, 10316810, 11790640, 16506896, 17375680, 18865024, 20633620, 23581280, 33013792, 34751360, 41267240, 47162560, 66027584, 82534480, 94325120, 132055168, 165068960, 330137920, 660275840]

約数ペア:

[(1, 660275840), (2, 330137920), (4, 165068960), (5, 132055168), (7, 94325120), (8, 82534480), (10, 66027584), (14, 47162560), (16, 41267240), (19, 34751360), (20, 33013792), (28, 23581280), (32, 20633620), (35, 18865024), (38, 17375680), (40, 16506896), (56, 11790640), (64, 10316810), (70, 9432512), (76, 8687840), (80, 8253448), (95, 6950272), (112, 5895320), (128, 5158405), (133, 4964480), (140, 4716256), (152, 4343920), (160, 4126724), (190, 3475136), (224, 2947660), (266, 2482240), (280, 2358128), (304, 2171960), (320, 2063362), (380, 1737568), (448, 1473830), (532, 1241120), (560, 1179064), (608, 1085980), (640, 1031681), (665, 992896), (760, 868784), (896, 736915), (1064, 620560), (1120, 589532), (1216, 542990), (1330, 496448), (1520, 434392), (2128, 310280), (2240, 294766), (2432, 271495), (2660, 248224), (3040, 217196), (4256, 155140), (4480, 147383), (5320, 124112), (6080, 108598), (7757, 85120), (8512, 77570), (10640, 62056), (12160, 54299), (15514, 42560), (17024, 38785), (21280, 31028)]