1989471.00000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4013}}^1$

素因数の和:4053

約数の個数: 96

約数和(自身を含む): 226582272

約数和(自身を除く): 146242012

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 4004, 4013, 5005, 8026, 10010, 16052, 20020, 20065, 28091, 40130, 44143, 52169, 56182, 80260, 88286, 104338, 112364, 140455, 176572, 208676, 220715, 260845, 280910, 309001, 365183, 441430, 521690, 561820, 573859, 618002, 730366, 882860, 1043380, 1147718, 1236004, 1460732, 1545005, 1825915, 2295436, 2869295, 3090010, 3651830, 4017013, 5738590, 6180020, 7303660, 8034026, 11477180, 16068052, 20085065, 40170130, 80340260]

約数ペア:

[(1, 80340260), (2, 40170130), (4, 20085065), (5, 16068052), (7, 11477180), (10, 8034026), (11, 7303660), (13, 6180020), (14, 5738590), (20, 4017013), (22, 3651830), (26, 3090010), (28, 2869295), (35, 2295436), (44, 1825915), (52, 1545005), (55, 1460732), (65, 1236004), (70, 1147718), (77, 1043380), (91, 882860), (110, 730366), (130, 618002), (140, 573859), (143, 561820), (154, 521690), (182, 441430), (220, 365183), (260, 309001), (286, 280910), (308, 260845), (364, 220715), (385, 208676), (455, 176572), (572, 140455), (715, 112364), (770, 104338), (910, 88286), (1001, 80260), (1430, 56182), (1540, 52169), (1820, 44143), (2002, 40130), (2860, 28091), (4004, 20065), (4013, 20020), (5005, 16052), (8026, 10010)]