20197619925

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{953}}^1$

素因数の和:1132

約数の個数: 144

約数和(自身を含む): 39917802240

約数和(自身を除く): 19720182315

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 73, 75, 79, 105, 147, 175, 219, 237, 245, 365, 395, 511, 525, 553, 735, 953, 1095, 1185, 1225, 1533, 1659, 1825, 1975, 2555, 2765, 2859, 3577, 3675, 3871, 4765, 5475, 5767, 5925, 6671, 7665, 8295, 10731, 11613, 12775, 13825, 14295, 17301, 17885, 19355, 20013, 23825, 28835, 33355, 38325, 40369, 41475, 46697, 53655, 58065, 69569, 71475, 75287, 86505, 89425, 96775, 100065, 121107, 140091, 144175, 166775, 201845, 208707, 225861, 233485, 268275, 282583, 290325, 347845, 376435, 432525, 486983, 500325, 527009, 605535, 700455, 847749, 1009225, 1043535, 1129305, 1167425, 1412915, 1460949, 1581027, 1739225, 1882175, 2434915, 2635045, 3027675, 3408881, 3502275, 3689063, 4238745, 5217675, 5495951, 5646525, 7064575, 7304745, 7905135, 10226643, 11067189, 12174575, 13175225, 16487853, 17044405, 18445315, 21193725, 27479755, 36523725, 38471657, 39525675, 51133215, 55335945, 82439265, 85222025, 92226575, 115414971, 137398775, 192358285, 255666075, 269301599, 276679725, 412196325, 577074855, 807904797, 961791425, 1346507995, 2885374275, 4039523985, 6732539975, 20197619925]

約数ペア:

[(1, 20197619925), (3, 6732539975), (5, 4039523985), (7, 2885374275), (15, 1346507995), (21, 961791425), (25, 807904797), (35, 577074855), (49, 412196325), (73, 276679725), (75, 269301599), (79, 255666075), (105, 192358285), (147, 137398775), (175, 115414971), (219, 92226575), (237, 85222025), (245, 82439265), (365, 55335945), (395, 51133215), (511, 39525675), (525, 38471657), (553, 36523725), (735, 27479755), (953, 21193725), (1095, 18445315), (1185, 17044405), (1225, 16487853), (1533, 13175225), (1659, 12174575), (1825, 11067189), (1975, 10226643), (2555, 7905135), (2765, 7304745), (2859, 7064575), (3577, 5646525), (3675, 5495951), (3871, 5217675), (4765, 4238745), (5475, 3689063), (5767, 3502275), (5925, 3408881), (6671, 3027675), (7665, 2635045), (8295, 2434915), (10731, 1882175), (11613, 1739225), (12775, 1581027), (13825, 1460949), (14295, 1412915), (17301, 1167425), (17885, 1129305), (19355, 1043535), (20013, 1009225), (23825, 847749), (28835, 700455), (33355, 605535), (38325, 527009), (40369, 500325), (41475, 486983), (46697, 432525), (53655, 376435), (58065, 347845), (69569, 290325), (71475, 282583), (75287, 268275), (86505, 233485), (89425, 225861), (96775, 208707), (100065, 201845), (121107, 166775), (140091, 144175)]