19657878040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1\times {\mathrm{829}}^1$

素因数の和:1661

約数の個数: 128

約数和(自身を含む): 47813976000

約数和(自身を除く): 28156097960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 761, 779, 820, 829, 1522, 1558, 1640, 1658, 3044, 3116, 3316, 3805, 3895, 4145, 6088, 6232, 6632, 7610, 7790, 8290, 14459, 15220, 15580, 15751, 16580, 28918, 30440, 31160, 31201, 31502, 33160, 33989, 57836, 62402, 63004, 67978, 72295, 78755, 115672, 124804, 126008, 135956, 144590, 156005, 157510, 169945, 249608, 271912, 289180, 312010, 315020, 339890, 578360, 592819, 624020, 630040, 630869, 645791, 679780, 1185638, 1248040, 1261738, 1291582, 1359560, 2371276, 2523476, 2583164, 2964095, 3154345, 3228955, 4742552, 5046952, 5166328, 5928190, 6308690, 6457910, 11856380, 11986511, 12617380, 12915820, 23712760, 23973022, 25234760, 25831640, 25865629, 47946044, 51731258, 59932555, 95892088, 103462516, 119865110, 129328145, 206925032, 239730220, 258656290, 479460440, 491446951, 517312580, 982893902, 1034625160, 1965787804, 2457234755, 3931575608, 4914469510, 9828939020, 19657878040]

約数ペア:

[(1, 19657878040), (2, 9828939020), (4, 4914469510), (5, 3931575608), (8, 2457234755), (10, 1965787804), (19, 1034625160), (20, 982893902), (38, 517312580), (40, 491446951), (41, 479460440), (76, 258656290), (82, 239730220), (95, 206925032), (152, 129328145), (164, 119865110), (190, 103462516), (205, 95892088), (328, 59932555), (380, 51731258), (410, 47946044), (760, 25865629), (761, 25831640), (779, 25234760), (820, 23973022), (829, 23712760), (1522, 12915820), (1558, 12617380), (1640, 11986511), (1658, 11856380), (3044, 6457910), (3116, 6308690), (3316, 5928190), (3805, 5166328), (3895, 5046952), (4145, 4742552), (6088, 3228955), (6232, 3154345), (6632, 2964095), (7610, 2583164), (7790, 2523476), (8290, 2371276), (14459, 1359560), (15220, 1291582), (15580, 1261738), (15751, 1248040), (16580, 1185638), (28918, 679780), (30440, 645791), (31160, 630869), (31201, 630040), (31502, 624020), (33160, 592819), (33989, 578360), (57836, 339890), (62402, 315020), (63004, 312010), (67978, 289180), (72295, 271912), (78755, 249608), (115672, 169945), (124804, 157510), (126008, 156005), (135956, 144590)]