31398640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:279

約数の個数: 160

約数和(自身を含む): 94993920

約数和(自身を除く): 63595280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 182, 190, 208, 227, 247, 260, 266, 280, 304, 364, 380, 454, 455, 494, 520, 532, 560, 665, 728, 760, 908, 910, 988, 1040, 1064, 1135, 1235, 1330, 1456, 1520, 1589, 1729, 1816, 1820, 1976, 2128, 2270, 2470, 2660, 2951, 3178, 3458, 3632, 3640, 3952, 4313, 4540, 4940, 5320, 5902, 6356, 6916, 7280, 7945, 8626, 8645, 9080, 9880, 10640, 11804, 12712, 13832, 14755, 15890, 17252, 17290, 18160, 19760, 20657, 21565, 23608, 25424, 27664, 29510, 30191, 31780, 34504, 34580, 41314, 43130, 47216, 56069, 59020, 60382, 63560, 69008, 69160, 82628, 86260, 103285, 112138, 118040, 120764, 127120, 138320, 150955, 165256, 172520, 206570, 224276, 236080, 241528, 280345, 301910, 330512, 345040, 392483, 413140, 448552, 483056, 560690, 603820, 784966, 826280, 897104, 1121380, 1207640, 1569932, 1652560, 1962415, 2242760, 2415280, 3139864, 3924830, 4485520, 6279728, 7849660, 15699320, 31398640]

約数ペア:

[(1, 31398640), (2, 15699320), (4, 7849660), (5, 6279728), (7, 4485520), (8, 3924830), (10, 3139864), (13, 2415280), (14, 2242760), (16, 1962415), (19, 1652560), (20, 1569932), (26, 1207640), (28, 1121380), (35, 897104), (38, 826280), (40, 784966), (52, 603820), (56, 560690), (65, 483056), (70, 448552), (76, 413140), (80, 392483), (91, 345040), (95, 330512), (104, 301910), (112, 280345), (130, 241528), (133, 236080), (140, 224276), (152, 206570), (182, 172520), (190, 165256), (208, 150955), (227, 138320), (247, 127120), (260, 120764), (266, 118040), (280, 112138), (304, 103285), (364, 86260), (380, 82628), (454, 69160), (455, 69008), (494, 63560), (520, 60382), (532, 59020), (560, 56069), (665, 47216), (728, 43130), (760, 41314), (908, 34580), (910, 34504), (988, 31780), (1040, 30191), (1064, 29510), (1135, 27664), (1235, 25424), (1330, 23608), (1456, 21565), (1520, 20657), (1589, 19760), (1729, 18160), (1816, 17290), (1820, 17252), (1976, 15890), (2128, 14755), (2270, 13832), (2470, 12712), (2660, 11804), (2951, 10640), (3178, 9880), (3458, 9080), (3632, 8645), (3640, 8626), (3952, 7945), (4313, 7280), (4540, 6916), (4940, 6356), (5320, 5902)]