18657840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{269}}^1$

素因数の和:319

約数の個数: 120

約数和(自身を含む): 61670160

約数和(自身を除く): 43012320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 269, 272, 289, 340, 408, 510, 538, 578, 680, 807, 816, 867, 1020, 1076, 1156, 1345, 1360, 1445, 1614, 1734, 2040, 2152, 2312, 2690, 2890, 3228, 3468, 4035, 4080, 4304, 4335, 4573, 4624, 5380, 5780, 6456, 6936, 8070, 8670, 9146, 10760, 11560, 12912, 13719, 13872, 16140, 17340, 18292, 21520, 22865, 23120, 27438, 32280, 34680, 36584, 45730, 54876, 64560, 68595, 69360, 73168, 77741, 91460, 109752, 137190, 155482, 182920, 219504, 233223, 274380, 310964, 365840, 388705, 466446, 548760, 621928, 777410, 932892, 1097520, 1166115, 1243856, 1554820, 1865784, 2332230, 3109640, 3731568, 4664460, 6219280, 9328920, 18657840]

約数ペア:

[(1, 18657840), (2, 9328920), (3, 6219280), (4, 4664460), (5, 3731568), (6, 3109640), (8, 2332230), (10, 1865784), (12, 1554820), (15, 1243856), (16, 1166115), (17, 1097520), (20, 932892), (24, 777410), (30, 621928), (34, 548760), (40, 466446), (48, 388705), (51, 365840), (60, 310964), (68, 274380), (80, 233223), (85, 219504), (102, 182920), (120, 155482), (136, 137190), (170, 109752), (204, 91460), (240, 77741), (255, 73168), (269, 69360), (272, 68595), (289, 64560), (340, 54876), (408, 45730), (510, 36584), (538, 34680), (578, 32280), (680, 27438), (807, 23120), (816, 22865), (867, 21520), (1020, 18292), (1076, 17340), (1156, 16140), (1345, 13872), (1360, 13719), (1445, 12912), (1614, 11560), (1734, 10760), (2040, 9146), (2152, 8670), (2312, 8070), (2690, 6936), (2890, 6456), (3228, 5780), (3468, 5380), (4035, 4624), (4080, 4573), (4304, 4335)]