201779540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 430012800

約数和(自身を除く): 228233260

約数列:

[1, 2, 4, 5, 10, 20, 157, 179, 314, 358, 359, 628, 716, 718, 785, 895, 1436, 1570, 1790, 1795, 3140, 3580, 3590, 7180, 28103, 56206, 56363, 64261, 112412, 112726, 128522, 140515, 225452, 257044, 281030, 281815, 321305, 562060, 563630, 642610, 1127260, 1285220, 10088977, 20177954, 40355908, 50444885, 100889770, 201779540]

約数ペア:

[(1, 201779540), (2, 100889770), (4, 50444885), (5, 40355908), (10, 20177954), (20, 10088977), (157, 1285220), (179, 1127260), (314, 642610), (358, 563630), (359, 562060), (628, 321305), (716, 281815), (718, 281030), (785, 257044), (895, 225452), (1436, 140515), (1570, 128522), (1790, 112726), (1795, 112412), (3140, 64261), (3580, 56363), (3590, 56206), (7180, 28103)]