20682270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 65249280

約数和(自身を除く): 44567010

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 353, 378, 434, 465, 558, 630, 651, 706, 837, 930, 945, 1059, 1085, 1302, 1395, 1674, 1765, 1890, 1953, 2118, 2170, 2471, 2790, 3177, 3255, 3530, 3906, 4185, 4942, 5295, 5859, 6354, 6510, 7413, 8370, 9531, 9765, 10590, 10943, 11718, 12355, 14826, 15885, 19062, 19530, 21886, 22239, 24710, 29295, 31770, 32829, 37065, 44478, 47655, 54715, 58590, 65658, 66717, 74130, 76601, 95310, 98487, 109430, 111195, 133434, 153202, 164145, 196974, 222390, 229803, 295461, 328290, 333585, 383005, 459606, 492435, 590922, 667170, 689409, 766010, 984870, 1149015, 1378818, 1477305, 2068227, 2298030, 2954610, 3447045, 4136454, 6894090, 10341135, 20682270]

約数ペア:

[(1, 20682270), (2, 10341135), (3, 6894090), (5, 4136454), (6, 3447045), (7, 2954610), (9, 2298030), (10, 2068227), (14, 1477305), (15, 1378818), (18, 1149015), (21, 984870), (27, 766010), (30, 689409), (31, 667170), (35, 590922), (42, 492435), (45, 459606), (54, 383005), (62, 333585), (63, 328290), (70, 295461), (90, 229803), (93, 222390), (105, 196974), (126, 164145), (135, 153202), (155, 133434), (186, 111195), (189, 109430), (210, 98487), (217, 95310), (270, 76601), (279, 74130), (310, 66717), (315, 65658), (353, 58590), (378, 54715), (434, 47655), (465, 44478), (558, 37065), (630, 32829), (651, 31770), (706, 29295), (837, 24710), (930, 22239), (945, 21886), (1059, 19530), (1085, 19062), (1302, 15885), (1395, 14826), (1674, 12355), (1765, 11718), (1890, 10943), (1953, 10590), (2118, 9765), (2170, 9531), (2471, 8370), (2790, 7413), (3177, 6510), (3255, 6354), (3530, 5859), (3906, 5295), (4185, 4942)]