420784640

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 160

約数和(自身を含む): 1093055040

約数和(自身を除く): 672270400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 95, 128, 152, 160, 164, 190, 205, 211, 256, 304, 320, 328, 380, 410, 422, 512, 608, 640, 656, 760, 779, 820, 844, 1055, 1216, 1280, 1312, 1520, 1558, 1640, 1688, 2110, 2432, 2560, 2624, 3040, 3116, 3280, 3376, 3895, 4009, 4220, 4864, 5248, 6080, 6232, 6560, 6752, 7790, 8018, 8440, 8651, 9728, 10496, 12160, 12464, 13120, 13504, 15580, 16036, 16880, 17302, 20045, 20992, 24320, 24928, 26240, 27008, 31160, 32072, 33760, 34604, 40090, 43255, 48640, 49856, 52480, 54016, 62320, 64144, 67520, 69208, 80180, 86510, 99712, 104960, 108032, 124640, 128288, 135040, 138416, 160360, 164369, 173020, 199424, 249280, 256576, 270080, 276832, 320720, 328738, 346040, 398848, 498560, 513152, 540160, 553664, 641440, 657476, 692080, 821845, 997120, 1026304, 1107328, 1282880, 1314952, 1384160, 1643690, 1994240, 2052608, 2214656, 2565760, 2629904, 2768320, 3287380, 4429312, 5131520, 5259808, 5536640, 6574760, 10263040, 10519616, 11073280, 13149520, 21039232, 22146560, 26299040, 42078464, 52598080, 84156928, 105196160, 210392320, 420784640]

約数ペア:

[(1, 420784640), (2, 210392320), (4, 105196160), (5, 84156928), (8, 52598080), (10, 42078464), (16, 26299040), (19, 22146560), (20, 21039232), (32, 13149520), (38, 11073280), (40, 10519616), (41, 10263040), (64, 6574760), (76, 5536640), (80, 5259808), (82, 5131520), (95, 4429312), (128, 3287380), (152, 2768320), (160, 2629904), (164, 2565760), (190, 2214656), (205, 2052608), (211, 1994240), (256, 1643690), (304, 1384160), (320, 1314952), (328, 1282880), (380, 1107328), (410, 1026304), (422, 997120), (512, 821845), (608, 692080), (640, 657476), (656, 641440), (760, 553664), (779, 540160), (820, 513152), (844, 498560), (1055, 398848), (1216, 346040), (1280, 328738), (1312, 320720), (1520, 276832), (1558, 270080), (1640, 256576), (1688, 249280), (2110, 199424), (2432, 173020), (2560, 164369), (2624, 160360), (3040, 138416), (3116, 135040), (3280, 128288), (3376, 124640), (3895, 108032), (4009, 104960), (4220, 99712), (4864, 86510), (5248, 80180), (6080, 69208), (6232, 67520), (6560, 64144), (6752, 62320), (7790, 54016), (8018, 52480), (8440, 49856), (8651, 48640), (9728, 43255), (10496, 40090), (12160, 34604), (12464, 33760), (13120, 32072), (13504, 31160), (15580, 27008), (16036, 26240), (16880, 24928), (17302, 24320), (20045, 20992)]