18542940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23773}}^1$

素因数の和:23798

約数の個数: 48

約数和(自身を含む): 55916448

約数和(自身を除く): 37373508

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, 23773, 47546, 71319, 95092, 118865, 142638, 237730, 285276, 309049, 356595, 475460, 618098, 713190, 927147, 1236196, 1426380, 1545245, 1854294, 3090490, 3708588, 4635735, 6180980, 9271470, 18542940]

約数ペア:

[(1, 18542940), (2, 9271470), (3, 6180980), (4, 4635735), (5, 3708588), (6, 3090490), (10, 1854294), (12, 1545245), (13, 1426380), (15, 1236196), (20, 927147), (26, 713190), (30, 618098), (39, 475460), (52, 356595), (60, 309049), (65, 285276), (78, 237730), (130, 142638), (156, 118865), (195, 95092), (260, 71319), (390, 47546), (780, 23773)]