77918620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15773}}^1$

素因数の和:15814

約数の個数: 48

約数和(自身を含む): 185502240

約数和(自身を除く): 107583620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 15773, 31546, 63092, 78865, 157730, 205049, 299687, 315460, 410098, 599374, 820196, 1025245, 1198748, 1498435, 2050490, 2996870, 3895931, 4100980, 5993740, 7791862, 15583724, 19479655, 38959310, 77918620]

約数ペア:

[(1, 77918620), (2, 38959310), (4, 19479655), (5, 15583724), (10, 7791862), (13, 5993740), (19, 4100980), (20, 3895931), (26, 2996870), (38, 2050490), (52, 1498435), (65, 1198748), (76, 1025245), (95, 820196), (130, 599374), (190, 410098), (247, 315460), (260, 299687), (380, 205049), (494, 157730), (988, 78865), (1235, 63092), (2470, 31546), (4940, 15773)]