221416880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 160

約数和(自身を含む): 579010560

約数和(自身を除く): 357593680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 37, 38, 40, 62, 74, 76, 80, 95, 124, 127, 148, 152, 155, 185, 190, 248, 254, 296, 304, 310, 370, 380, 496, 508, 589, 592, 620, 635, 703, 740, 760, 1016, 1147, 1178, 1240, 1270, 1406, 1480, 1520, 2032, 2294, 2356, 2413, 2480, 2540, 2812, 2945, 2960, 3515, 3937, 4588, 4699, 4712, 4826, 5080, 5624, 5735, 5890, 7030, 7874, 9176, 9398, 9424, 9652, 10160, 11248, 11470, 11780, 12065, 14060, 15748, 18352, 18796, 19304, 19685, 21793, 22940, 23495, 23560, 24130, 28120, 31496, 37592, 38608, 39370, 43586, 45880, 46990, 47120, 48260, 56240, 62992, 74803, 75184, 78740, 87172, 89281, 91760, 93980, 96520, 108965, 145669, 149606, 157480, 174344, 178562, 187960, 193040, 217930, 291338, 299212, 314960, 348688, 357124, 374015, 375920, 435860, 446405, 582676, 598424, 714248, 728345, 748030, 871720, 892810, 1165352, 1196848, 1428496, 1456690, 1496060, 1743440, 1785620, 2330704, 2767711, 2913380, 2992120, 3571240, 5535422, 5826760, 5984240, 7142480, 11070844, 11653520, 13838555, 22141688, 27677110, 44283376, 55354220, 110708440, 221416880]

約数ペア:

[(1, 221416880), (2, 110708440), (4, 55354220), (5, 44283376), (8, 27677110), (10, 22141688), (16, 13838555), (19, 11653520), (20, 11070844), (31, 7142480), (37, 5984240), (38, 5826760), (40, 5535422), (62, 3571240), (74, 2992120), (76, 2913380), (80, 2767711), (95, 2330704), (124, 1785620), (127, 1743440), (148, 1496060), (152, 1456690), (155, 1428496), (185, 1196848), (190, 1165352), (248, 892810), (254, 871720), (296, 748030), (304, 728345), (310, 714248), (370, 598424), (380, 582676), (496, 446405), (508, 435860), (589, 375920), (592, 374015), (620, 357124), (635, 348688), (703, 314960), (740, 299212), (760, 291338), (1016, 217930), (1147, 193040), (1178, 187960), (1240, 178562), (1270, 174344), (1406, 157480), (1480, 149606), (1520, 145669), (2032, 108965), (2294, 96520), (2356, 93980), (2413, 91760), (2480, 89281), (2540, 87172), (2812, 78740), (2945, 75184), (2960, 74803), (3515, 62992), (3937, 56240), (4588, 48260), (4699, 47120), (4712, 46990), (4826, 45880), (5080, 43586), (5624, 39370), (5735, 38608), (5890, 37592), (7030, 31496), (7874, 28120), (9176, 24130), (9398, 23560), (9424, 23495), (9652, 22940), (10160, 21793), (11248, 19685), (11470, 19304), (11780, 18796), (12065, 18352), (14060, 15748)]