20176904920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^3\times {\mathrm{83}}^1\times {\mathrm{1237}}^1$

素因数の和:1382

約数の個数: 128

約数和(自身を含む): 48855441600

約数和(自身を除く): 28678536680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 83, 85, 136, 166, 170, 289, 332, 340, 415, 578, 664, 680, 830, 1156, 1237, 1411, 1445, 1660, 2312, 2474, 2822, 2890, 3320, 4913, 4948, 5644, 5780, 6185, 7055, 9826, 9896, 11288, 11560, 12370, 14110, 19652, 21029, 23987, 24565, 24740, 28220, 39304, 42058, 47974, 49130, 49480, 56440, 84116, 95948, 98260, 102671, 105145, 119935, 168232, 191896, 196520, 205342, 210290, 239870, 357493, 407779, 410684, 420580, 479740, 513355, 714986, 815558, 821368, 841160, 959480, 1026710, 1429972, 1631116, 1745407, 1787465, 2038895, 2053420, 2859944, 3262232, 3490814, 3574930, 4077790, 4106840, 6077381, 6981628, 7149860, 8155580, 8727035, 12154762, 13963256, 14299720, 16311160, 17454070, 24309524, 29671919, 30386905, 34908140, 48619048, 59343838, 60773810, 69816280, 118687676, 121547620, 148359595, 237375352, 243095240, 296719190, 504422623, 593438380, 1008845246, 1186876760, 2017690492, 2522113115, 4035380984, 5044226230, 10088452460, 20176904920]

約数ペア:

[(1, 20176904920), (2, 10088452460), (4, 5044226230), (5, 4035380984), (8, 2522113115), (10, 2017690492), (17, 1186876760), (20, 1008845246), (34, 593438380), (40, 504422623), (68, 296719190), (83, 243095240), (85, 237375352), (136, 148359595), (166, 121547620), (170, 118687676), (289, 69816280), (332, 60773810), (340, 59343838), (415, 48619048), (578, 34908140), (664, 30386905), (680, 29671919), (830, 24309524), (1156, 17454070), (1237, 16311160), (1411, 14299720), (1445, 13963256), (1660, 12154762), (2312, 8727035), (2474, 8155580), (2822, 7149860), (2890, 6981628), (3320, 6077381), (4913, 4106840), (4948, 4077790), (5644, 3574930), (5780, 3490814), (6185, 3262232), (7055, 2859944), (9826, 2053420), (9896, 2038895), (11288, 1787465), (11560, 1745407), (12370, 1631116), (14110, 1429972), (19652, 1026710), (21029, 959480), (23987, 841160), (24565, 821368), (24740, 815558), (28220, 714986), (39304, 513355), (42058, 479740), (47974, 420580), (49130, 410684), (49480, 407779), (56440, 357493), (84116, 239870), (95948, 210290), (98260, 205342), (102671, 196520), (105145, 191896), (119935, 168232)]