401404640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1505

約数の個数: 192

約数和(自身を含む): 1229437440

約数和(自身を除く): 828032800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 160, 182, 190, 208, 224, 247, 260, 266, 280, 304, 364, 380, 416, 455, 494, 520, 532, 560, 608, 665, 728, 760, 910, 988, 1040, 1064, 1120, 1235, 1330, 1451, 1456, 1520, 1729, 1820, 1976, 2080, 2128, 2470, 2660, 2902, 2912, 3040, 3458, 3640, 3952, 4256, 4940, 5320, 5804, 6916, 7255, 7280, 7904, 8645, 9880, 10157, 10640, 11608, 13832, 14510, 14560, 17290, 18863, 19760, 20314, 21280, 23216, 27569, 27664, 29020, 34580, 37726, 39520, 40628, 46432, 50785, 55138, 55328, 58040, 69160, 75452, 81256, 94315, 101570, 110276, 116080, 132041, 137845, 138320, 150904, 162512, 188630, 192983, 203140, 220552, 232160, 264082, 275690, 276640, 301808, 325024, 358397, 377260, 385966, 406280, 441104, 528164, 551380, 603616, 660205, 716794, 754520, 771932, 812560, 882208, 964915, 1056328, 1102760, 1320410, 1433588, 1509040, 1543864, 1625120, 1791985, 1929830, 2112656, 2205520, 2508779, 2640820, 2867176, 3018080, 3087728, 3583970, 3859660, 4225312, 4411040, 5017558, 5281640, 5734352, 6175456, 7167940, 7719320, 10035116, 10563280, 11468704, 12543895, 14335880, 15438640, 20070232, 21126560, 25087790, 28671760, 30877280, 40140464, 50175580, 57343520, 80280928, 100351160, 200702320, 401404640]

約数ペア:

[(1, 401404640), (2, 200702320), (4, 100351160), (5, 80280928), (7, 57343520), (8, 50175580), (10, 40140464), (13, 30877280), (14, 28671760), (16, 25087790), (19, 21126560), (20, 20070232), (26, 15438640), (28, 14335880), (32, 12543895), (35, 11468704), (38, 10563280), (40, 10035116), (52, 7719320), (56, 7167940), (65, 6175456), (70, 5734352), (76, 5281640), (80, 5017558), (91, 4411040), (95, 4225312), (104, 3859660), (112, 3583970), (130, 3087728), (133, 3018080), (140, 2867176), (152, 2640820), (160, 2508779), (182, 2205520), (190, 2112656), (208, 1929830), (224, 1791985), (247, 1625120), (260, 1543864), (266, 1509040), (280, 1433588), (304, 1320410), (364, 1102760), (380, 1056328), (416, 964915), (455, 882208), (494, 812560), (520, 771932), (532, 754520), (560, 716794), (608, 660205), (665, 603616), (728, 551380), (760, 528164), (910, 441104), (988, 406280), (1040, 385966), (1064, 377260), (1120, 358397), (1235, 325024), (1330, 301808), (1451, 276640), (1456, 275690), (1520, 264082), (1729, 232160), (1820, 220552), (1976, 203140), (2080, 192983), (2128, 188630), (2470, 162512), (2660, 150904), (2902, 138320), (2912, 137845), (3040, 132041), (3458, 116080), (3640, 110276), (3952, 101570), (4256, 94315), (4940, 81256), (5320, 75452), (5804, 69160), (6916, 58040), (7255, 55328), (7280, 55138), (7904, 50785), (8645, 46432), (9880, 40628), (10157, 39520), (10640, 37726), (11608, 34580), (13832, 29020), (14510, 27664), (14560, 27569), (17290, 23216), (18863, 21280), (19760, 20314)]