90181980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3767}}^1$

素因数の和:3808

約数の個数: 144

約数和(自身を含む): 329172480

約数和(自身を除く): 238990500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3420, 3767, 3990, 4788, 5985, 7534, 7980, 11301, 11970, 15068, 18835, 22602, 23940, 26369, 33903, 37670, 45204, 52738, 56505, 67806, 71573, 75340, 79107, 105476, 113010, 131845, 135612, 143146, 158214, 169515, 214719, 226020, 237321, 263690, 286292, 316428, 339030, 357865, 395535, 429438, 474642, 501011, 527380, 644157, 678060, 715730, 791070, 858876, 949284, 1002022, 1073595, 1186605, 1288314, 1431460, 1503033, 1582140, 2004044, 2147190, 2373210, 2505055, 2576628, 3006066, 3220785, 4294380, 4509099, 4746420, 5010110, 6012132, 6441570, 7515165, 9018198, 10020220, 12883140, 15030330, 18036396, 22545495, 30060660, 45090990, 90181980]

約数ペア:

[(1, 90181980), (2, 45090990), (3, 30060660), (4, 22545495), (5, 18036396), (6, 15030330), (7, 12883140), (9, 10020220), (10, 9018198), (12, 7515165), (14, 6441570), (15, 6012132), (18, 5010110), (19, 4746420), (20, 4509099), (21, 4294380), (28, 3220785), (30, 3006066), (35, 2576628), (36, 2505055), (38, 2373210), (42, 2147190), (45, 2004044), (57, 1582140), (60, 1503033), (63, 1431460), (70, 1288314), (76, 1186605), (84, 1073595), (90, 1002022), (95, 949284), (105, 858876), (114, 791070), (126, 715730), (133, 678060), (140, 644157), (171, 527380), (180, 501011), (190, 474642), (210, 429438), (228, 395535), (252, 357865), (266, 339030), (285, 316428), (315, 286292), (342, 263690), (380, 237321), (399, 226020), (420, 214719), (532, 169515), (570, 158214), (630, 143146), (665, 135612), (684, 131845), (798, 113010), (855, 105476), (1140, 79107), (1197, 75340), (1260, 71573), (1330, 67806), (1596, 56505), (1710, 52738), (1995, 45204), (2394, 37670), (2660, 33903), (3420, 26369), (3767, 23940), (3990, 22602), (4788, 18835), (5985, 15068), (7534, 11970), (7980, 11301)]