19556940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25073}}^1$

素因数の和:25098

約数の個数: 48

約数和(自身を含む): 58974048

約数和(自身を除く): 39417108

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, 25073, 50146, 75219, 100292, 125365, 150438, 250730, 300876, 325949, 376095, 501460, 651898, 752190, 977847, 1303796, 1504380, 1629745, 1955694, 3259490, 3911388, 4889235, 6518980, 9778470, 19556940]

約数ペア:

[(1, 19556940), (2, 9778470), (3, 6518980), (4, 4889235), (5, 3911388), (6, 3259490), (10, 1955694), (12, 1629745), (13, 1504380), (15, 1303796), (20, 977847), (26, 752190), (30, 651898), (39, 501460), (52, 376095), (60, 325949), (65, 300876), (78, 250730), (130, 150438), (156, 125365), (195, 100292), (260, 75219), (390, 50146), (780, 25073)]