21824240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 54907200

約数和(自身を除く): 33082960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 40, 46, 58, 80, 92, 115, 116, 145, 184, 230, 232, 290, 368, 409, 460, 464, 580, 667, 818, 920, 1160, 1334, 1636, 1840, 2045, 2320, 2668, 3272, 3335, 4090, 5336, 6544, 6670, 8180, 9407, 10672, 11861, 13340, 16360, 18814, 23722, 26680, 32720, 37628, 47035, 47444, 53360, 59305, 75256, 94070, 94888, 118610, 150512, 188140, 189776, 237220, 272803, 376280, 474440, 545606, 752560, 948880, 1091212, 1364015, 2182424, 2728030, 4364848, 5456060, 10912120, 21824240]

約数ペア:

[(1, 21824240), (2, 10912120), (4, 5456060), (5, 4364848), (8, 2728030), (10, 2182424), (16, 1364015), (20, 1091212), (23, 948880), (29, 752560), (40, 545606), (46, 474440), (58, 376280), (80, 272803), (92, 237220), (115, 189776), (116, 188140), (145, 150512), (184, 118610), (230, 94888), (232, 94070), (290, 75256), (368, 59305), (409, 53360), (460, 47444), (464, 47035), (580, 37628), (667, 32720), (818, 26680), (920, 23722), (1160, 18814), (1334, 16360), (1636, 13340), (1840, 11861), (2045, 10672), (2320, 9407), (2668, 8180), (3272, 6670), (3335, 6544), (4090, 5336)]