15592980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20016

約数の個数: 48

約数和(自身を含む): 47021184

約数和(自身を除く): 31428204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 19991, 39982, 59973, 79964, 99955, 119946, 199910, 239892, 259883, 299865, 399820, 519766, 599730, 779649, 1039532, 1199460, 1299415, 1559298, 2598830, 3118596, 3898245, 5197660, 7796490, 15592980]

約数ペア:

[(1, 15592980), (2, 7796490), (3, 5197660), (4, 3898245), (5, 3118596), (6, 2598830), (10, 1559298), (12, 1299415), (13, 1199460), (15, 1039532), (20, 779649), (26, 599730), (30, 519766), (39, 399820), (52, 299865), (60, 259883), (65, 239892), (78, 199910), (130, 119946), (156, 99955), (195, 79964), (260, 59973), (390, 39982), (780, 19991)]