31125640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 91445760

約数和(自身を除く): 60320120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 364, 442, 455, 476, 503, 520, 595, 680, 728, 884, 910, 952, 1006, 1105, 1190, 1547, 1768, 1820, 2012, 2210, 2380, 2515, 3094, 3521, 3640, 4024, 4420, 4760, 5030, 6188, 6539, 7042, 7735, 8551, 8840, 10060, 12376, 13078, 14084, 15470, 17102, 17605, 20120, 26156, 28168, 30940, 32695, 34204, 35210, 42755, 45773, 52312, 59857, 61880, 65390, 68408, 70420, 85510, 91546, 111163, 119714, 130780, 140840, 171020, 183092, 222326, 228865, 239428, 261560, 299285, 342040, 366184, 444652, 457730, 478856, 555815, 598570, 778141, 889304, 915460, 1111630, 1197140, 1556282, 1830920, 2223260, 2394280, 3112564, 3890705, 4446520, 6225128, 7781410, 15562820, 31125640]

約数ペア:

[(1, 31125640), (2, 15562820), (4, 7781410), (5, 6225128), (7, 4446520), (8, 3890705), (10, 3112564), (13, 2394280), (14, 2223260), (17, 1830920), (20, 1556282), (26, 1197140), (28, 1111630), (34, 915460), (35, 889304), (40, 778141), (52, 598570), (56, 555815), (65, 478856), (68, 457730), (70, 444652), (85, 366184), (91, 342040), (104, 299285), (119, 261560), (130, 239428), (136, 228865), (140, 222326), (170, 183092), (182, 171020), (221, 140840), (238, 130780), (260, 119714), (280, 111163), (340, 91546), (364, 85510), (442, 70420), (455, 68408), (476, 65390), (503, 61880), (520, 59857), (595, 52312), (680, 45773), (728, 42755), (884, 35210), (910, 34204), (952, 32695), (1006, 30940), (1105, 28168), (1190, 26156), (1547, 20120), (1768, 17605), (1820, 17102), (2012, 15470), (2210, 14084), (2380, 13078), (2515, 12376), (3094, 10060), (3521, 8840), (3640, 8551), (4024, 7735), (4420, 7042), (4760, 6539), (5030, 6188)]