19916940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17471}}^1$

素因数の和:17502

約数の個数: 48

約数和(自身を含む): 58705920

約数和(自身を除く): 38788980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17471, 34942, 52413, 69884, 87355, 104826, 174710, 209652, 262065, 331949, 349420, 524130, 663898, 995847, 1048260, 1327796, 1659745, 1991694, 3319490, 3983388, 4979235, 6638980, 9958470, 19916940]

約数ペア:

[(1, 19916940), (2, 9958470), (3, 6638980), (4, 4979235), (5, 3983388), (6, 3319490), (10, 1991694), (12, 1659745), (15, 1327796), (19, 1048260), (20, 995847), (30, 663898), (38, 524130), (57, 349420), (60, 331949), (76, 262065), (95, 209652), (114, 174710), (190, 104826), (228, 87355), (285, 69884), (380, 52413), (570, 34942), (1140, 17471)]