12819740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 30028320

約数和(自身を除く): 17208580

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 31, 46, 58, 62, 92, 115, 116, 124, 145, 155, 230, 290, 310, 460, 580, 620, 667, 713, 899, 961, 1334, 1426, 1798, 1922, 2668, 2852, 3335, 3565, 3596, 3844, 4495, 4805, 6670, 7130, 8990, 9610, 13340, 14260, 17980, 19220, 20677, 22103, 27869, 41354, 44206, 55738, 82708, 88412, 103385, 110515, 111476, 139345, 206770, 221030, 278690, 413540, 442060, 557380, 640987, 1281974, 2563948, 3204935, 6409870, 12819740]

約数ペア:

[(1, 12819740), (2, 6409870), (4, 3204935), (5, 2563948), (10, 1281974), (20, 640987), (23, 557380), (29, 442060), (31, 413540), (46, 278690), (58, 221030), (62, 206770), (92, 139345), (115, 111476), (116, 110515), (124, 103385), (145, 88412), (155, 82708), (230, 55738), (290, 44206), (310, 41354), (460, 27869), (580, 22103), (620, 20677), (667, 19220), (713, 17980), (899, 14260), (961, 13340), (1334, 9610), (1426, 8990), (1798, 7130), (1922, 6670), (2668, 4805), (2852, 4495), (3335, 3844), (3565, 3596)]