15778980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{1789}}^1$

素因数の和:1818

約数の個数: 108

約数和(自身を含む): 55708380

約数和(自身を除く): 39929400

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 1789, 2205, 2940, 3578, 4410, 5367, 7156, 8820, 8945, 10734, 12523, 16101, 17890, 21468, 25046, 26835, 32202, 35780, 37569, 50092, 53670, 62615, 64404, 75138, 80505, 87661, 107340, 112707, 125230, 150276, 161010, 175322, 187845, 225414, 250460, 262983, 322020, 350644, 375690, 438305, 450828, 525966, 563535, 751380, 788949, 876610, 1051932, 1127070, 1314915, 1577898, 1753220, 2254140, 2629830, 3155796, 3944745, 5259660, 7889490, 15778980]

約数ペア:

[(1, 15778980), (2, 7889490), (3, 5259660), (4, 3944745), (5, 3155796), (6, 2629830), (7, 2254140), (9, 1753220), (10, 1577898), (12, 1314915), (14, 1127070), (15, 1051932), (18, 876610), (20, 788949), (21, 751380), (28, 563535), (30, 525966), (35, 450828), (36, 438305), (42, 375690), (45, 350644), (49, 322020), (60, 262983), (63, 250460), (70, 225414), (84, 187845), (90, 175322), (98, 161010), (105, 150276), (126, 125230), (140, 112707), (147, 107340), (180, 87661), (196, 80505), (210, 75138), (245, 64404), (252, 62615), (294, 53670), (315, 50092), (420, 37569), (441, 35780), (490, 32202), (588, 26835), (630, 25046), (735, 21468), (882, 17890), (980, 16101), (1260, 12523), (1470, 10734), (1764, 8945), (1789, 8820), (2205, 7156), (2940, 5367), (3578, 4410)]