180407916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{971}}^1$

素因数の和:1391

約数の個数: 72

約数和(自身を含む): 492854544

約数和(自身を除く): 312446628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 397, 468, 794, 971, 1191, 1588, 1942, 2382, 2913, 3573, 3884, 4764, 5161, 5826, 7146, 8739, 10322, 11652, 12623, 14292, 15483, 17478, 20644, 25246, 30966, 34956, 37869, 46449, 50492, 61932, 75738, 92898, 113607, 151476, 185796, 227214, 385487, 454428, 770974, 1156461, 1541948, 2312922, 3469383, 4625844, 5011331, 6938766, 10022662, 13877532, 15033993, 20045324, 30067986, 45101979, 60135972, 90203958, 180407916]

約数ペア:

[(1, 180407916), (2, 90203958), (3, 60135972), (4, 45101979), (6, 30067986), (9, 20045324), (12, 15033993), (13, 13877532), (18, 10022662), (26, 6938766), (36, 5011331), (39, 4625844), (52, 3469383), (78, 2312922), (117, 1541948), (156, 1156461), (234, 770974), (397, 454428), (468, 385487), (794, 227214), (971, 185796), (1191, 151476), (1588, 113607), (1942, 92898), (2382, 75738), (2913, 61932), (3573, 50492), (3884, 46449), (4764, 37869), (5161, 34956), (5826, 30966), (7146, 25246), (8739, 20644), (10322, 17478), (11652, 15483), (12623, 14292)]