20280260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1013}}^1$

素因数の和:1053

約数の個数: 96

約数和(自身を含む): 57238272

約数和(自身を除く): 36958012

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, 1013, 1430, 1540, 1820, 2002, 2026, 2860, 4004, 4052, 5005, 5065, 7091, 10010, 10130, 11143, 13169, 14182, 20020, 20260, 22286, 26338, 28364, 35455, 44572, 52676, 55715, 65845, 70910, 78001, 92183, 111430, 131690, 141820, 144859, 156002, 184366, 222860, 263380, 289718, 312004, 368732, 390005, 460915, 579436, 724295, 780010, 921830, 1014013, 1448590, 1560020, 1843660, 2028026, 2897180, 4056052, 5070065, 10140130, 20280260]

約数ペア:

[(1, 20280260), (2, 10140130), (4, 5070065), (5, 4056052), (7, 2897180), (10, 2028026), (11, 1843660), (13, 1560020), (14, 1448590), (20, 1014013), (22, 921830), (26, 780010), (28, 724295), (35, 579436), (44, 460915), (52, 390005), (55, 368732), (65, 312004), (70, 289718), (77, 263380), (91, 222860), (110, 184366), (130, 156002), (140, 144859), (143, 141820), (154, 131690), (182, 111430), (220, 92183), (260, 78001), (286, 70910), (308, 65845), (364, 55715), (385, 52676), (455, 44572), (572, 35455), (715, 28364), (770, 26338), (910, 22286), (1001, 20260), (1013, 20020), (1430, 14182), (1540, 13169), (1820, 11143), (2002, 10130), (2026, 10010), (2860, 7091), (4004, 5065), (4052, 5005)]