28038348

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:535

約数の個数: 72

約数和(自身を含む): 76980176

約数和(自身を除く): 48941828

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 181, 234, 331, 362, 468, 543, 662, 724, 993, 1086, 1324, 1629, 1986, 2172, 2353, 2979, 3258, 3972, 4303, 4706, 5958, 6516, 7059, 8606, 9412, 11916, 12909, 14118, 17212, 21177, 25818, 28236, 38727, 42354, 51636, 59911, 77454, 84708, 119822, 154908, 179733, 239644, 359466, 539199, 718932, 778843, 1078398, 1557686, 2156796, 2336529, 3115372, 4673058, 7009587, 9346116, 14019174, 28038348]

約数ペア:

[(1, 28038348), (2, 14019174), (3, 9346116), (4, 7009587), (6, 4673058), (9, 3115372), (12, 2336529), (13, 2156796), (18, 1557686), (26, 1078398), (36, 778843), (39, 718932), (52, 539199), (78, 359466), (117, 239644), (156, 179733), (181, 154908), (234, 119822), (331, 84708), (362, 77454), (468, 59911), (543, 51636), (662, 42354), (724, 38727), (993, 28236), (1086, 25818), (1324, 21177), (1629, 17212), (1986, 14118), (2172, 12909), (2353, 11916), (2979, 9412), (3258, 8606), (3972, 7059), (4303, 6516), (4706, 5958)]