19866480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 66424320

約数和(自身を除く): 46557840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 59, 60, 61, 69, 80, 92, 115, 118, 120, 122, 138, 177, 183, 184, 230, 236, 240, 244, 276, 295, 305, 345, 354, 366, 368, 460, 472, 488, 552, 590, 610, 690, 708, 732, 885, 915, 920, 944, 976, 1104, 1180, 1220, 1357, 1380, 1403, 1416, 1464, 1770, 1830, 1840, 2360, 2440, 2714, 2760, 2806, 2832, 2928, 3540, 3599, 3660, 4071, 4209, 4720, 4880, 5428, 5520, 5612, 6785, 7015, 7080, 7198, 7320, 8142, 8418, 10797, 10856, 11224, 13570, 14030, 14160, 14396, 14640, 16284, 16836, 17995, 20355, 21045, 21594, 21712, 22448, 27140, 28060, 28792, 32568, 33672, 35990, 40710, 42090, 43188, 53985, 54280, 56120, 57584, 65136, 67344, 71980, 81420, 82777, 84180, 86376, 107970, 108560, 112240, 143960, 162840, 165554, 168360, 172752, 215940, 248331, 287920, 325680, 331108, 336720, 413885, 431880, 496662, 662216, 827770, 863760, 993324, 1241655, 1324432, 1655540, 1986648, 2483310, 3311080, 3973296, 4966620, 6622160, 9933240, 19866480]

約数ペア:

[(1, 19866480), (2, 9933240), (3, 6622160), (4, 4966620), (5, 3973296), (6, 3311080), (8, 2483310), (10, 1986648), (12, 1655540), (15, 1324432), (16, 1241655), (20, 993324), (23, 863760), (24, 827770), (30, 662216), (40, 496662), (46, 431880), (48, 413885), (59, 336720), (60, 331108), (61, 325680), (69, 287920), (80, 248331), (92, 215940), (115, 172752), (118, 168360), (120, 165554), (122, 162840), (138, 143960), (177, 112240), (183, 108560), (184, 107970), (230, 86376), (236, 84180), (240, 82777), (244, 81420), (276, 71980), (295, 67344), (305, 65136), (345, 57584), (354, 56120), (366, 54280), (368, 53985), (460, 43188), (472, 42090), (488, 40710), (552, 35990), (590, 33672), (610, 32568), (690, 28792), (708, 28060), (732, 27140), (885, 22448), (915, 21712), (920, 21594), (944, 21045), (976, 20355), (1104, 17995), (1180, 16836), (1220, 16284), (1357, 14640), (1380, 14396), (1403, 14160), (1416, 14030), (1464, 13570), (1770, 11224), (1830, 10856), (1840, 10797), (2360, 8418), (2440, 8142), (2714, 7320), (2760, 7198), (2806, 7080), (2832, 7015), (2928, 6785), (3540, 5612), (3599, 5520), (3660, 5428), (4071, 4880), (4209, 4720)]