12971540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 28764288

約数和(自身を除く): 15792748

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 163, 173, 230, 326, 346, 460, 652, 692, 815, 865, 1630, 1730, 3260, 3460, 3749, 3979, 7498, 7958, 14996, 15916, 18745, 19895, 28199, 37490, 39790, 56398, 74980, 79580, 112796, 140995, 281990, 563980, 648577, 1297154, 2594308, 3242885, 6485770, 12971540]

約数ペア:

[(1, 12971540), (2, 6485770), (4, 3242885), (5, 2594308), (10, 1297154), (20, 648577), (23, 563980), (46, 281990), (92, 140995), (115, 112796), (163, 79580), (173, 74980), (230, 56398), (326, 39790), (346, 37490), (460, 28199), (652, 19895), (692, 18745), (815, 15916), (865, 14996), (1630, 7958), (1730, 7498), (3260, 3979), (3460, 3749)]