80716940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{683}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 179262720

約数和(自身を除く): 98545780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 311, 380, 622, 683, 1244, 1366, 1555, 2732, 3110, 3415, 5909, 6220, 6830, 11818, 12977, 13660, 23636, 25954, 29545, 51908, 59090, 64885, 118180, 129770, 212413, 259540, 424826, 849652, 1062065, 2124130, 4035847, 4248260, 8071694, 16143388, 20179235, 40358470, 80716940]

約数ペア:

[(1, 80716940), (2, 40358470), (4, 20179235), (5, 16143388), (10, 8071694), (19, 4248260), (20, 4035847), (38, 2124130), (76, 1062065), (95, 849652), (190, 424826), (311, 259540), (380, 212413), (622, 129770), (683, 118180), (1244, 64885), (1366, 59090), (1555, 51908), (2732, 29545), (3110, 25954), (3415, 23636), (5909, 13660), (6220, 12977), (6830, 11818)]