2021061520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{18617}}^1$

素因数の和:18712

約数の個数: 80

約数和(自身を含む): 4986645120

約数和(自身を除く): 2965583600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 59, 80, 92, 115, 118, 184, 230, 236, 295, 368, 460, 472, 590, 920, 944, 1180, 1357, 1840, 2360, 2714, 4720, 5428, 6785, 10856, 13570, 18617, 21712, 27140, 37234, 54280, 74468, 93085, 108560, 148936, 186170, 297872, 372340, 428191, 744680, 856382, 1098403, 1489360, 1712764, 2140955, 2196806, 3425528, 4281910, 4393612, 5492015, 6851056, 8563820, 8787224, 10984030, 17127640, 17574448, 21968060, 25263269, 34255280, 43936120, 50526538, 87872240, 101053076, 126316345, 202106152, 252632690, 404212304, 505265380, 1010530760, 2021061520]

約数ペア:

[(1, 2021061520), (2, 1010530760), (4, 505265380), (5, 404212304), (8, 252632690), (10, 202106152), (16, 126316345), (20, 101053076), (23, 87872240), (40, 50526538), (46, 43936120), (59, 34255280), (80, 25263269), (92, 21968060), (115, 17574448), (118, 17127640), (184, 10984030), (230, 8787224), (236, 8563820), (295, 6851056), (368, 5492015), (460, 4393612), (472, 4281910), (590, 3425528), (920, 2196806), (944, 2140955), (1180, 1712764), (1357, 1489360), (1840, 1098403), (2360, 856382), (2714, 744680), (4720, 428191), (5428, 372340), (6785, 297872), (10856, 186170), (13570, 148936), (18617, 108560), (21712, 93085), (27140, 74468), (37234, 54280)]