20877390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 96

約数和(自身を含む): 59248800

約数和(自身を除く): 38371410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 29, 30, 38, 45, 57, 58, 87, 90, 95, 114, 145, 171, 174, 190, 261, 285, 290, 342, 421, 435, 522, 551, 570, 842, 855, 870, 1102, 1263, 1305, 1653, 1710, 2105, 2526, 2610, 2755, 3306, 3789, 4210, 4959, 5510, 6315, 7578, 7999, 8265, 9918, 12209, 12630, 15998, 16530, 18945, 23997, 24418, 24795, 36627, 37890, 39995, 47994, 49590, 61045, 71991, 73254, 79990, 109881, 119985, 122090, 143982, 183135, 219762, 231971, 239970, 359955, 366270, 463942, 549405, 695913, 719910, 1098810, 1159855, 1391826, 2087739, 2319710, 3479565, 4175478, 6959130, 10438695, 20877390]

約数ペア:

[(1, 20877390), (2, 10438695), (3, 6959130), (5, 4175478), (6, 3479565), (9, 2319710), (10, 2087739), (15, 1391826), (18, 1159855), (19, 1098810), (29, 719910), (30, 695913), (38, 549405), (45, 463942), (57, 366270), (58, 359955), (87, 239970), (90, 231971), (95, 219762), (114, 183135), (145, 143982), (171, 122090), (174, 119985), (190, 109881), (261, 79990), (285, 73254), (290, 71991), (342, 61045), (421, 49590), (435, 47994), (522, 39995), (551, 37890), (570, 36627), (842, 24795), (855, 24418), (870, 23997), (1102, 18945), (1263, 16530), (1305, 15998), (1653, 12630), (1710, 12209), (2105, 9918), (2526, 8265), (2610, 7999), (2755, 7578), (3306, 6315), (3789, 5510), (4210, 4959)]