21167993080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{4801}}^1$

素因数の和:5025

約数の個数: 128

約数和(自身を含む): 52518513600

約数和(自身を除く): 31350520520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 139, 244, 260, 278, 305, 488, 520, 556, 610, 695, 793, 1112, 1220, 1390, 1586, 1807, 2440, 2780, 3172, 3614, 3965, 4801, 5560, 6344, 7228, 7930, 8479, 9035, 9602, 14456, 15860, 16958, 18070, 19204, 24005, 31720, 33916, 36140, 38408, 42395, 48010, 62413, 67832, 72280, 84790, 96020, 110227, 124826, 169580, 192040, 220454, 249652, 292861, 312065, 339160, 440908, 499304, 551135, 585722, 624130, 667339, 881816, 1102270, 1171444, 1248260, 1334678, 1464305, 2204540, 2342888, 2496520, 2669356, 2928610, 3336695, 3807193, 4409080, 5338712, 5857220, 6673390, 7614386, 8675407, 11714440, 13346780, 15228772, 17350814, 19035965, 26693560, 30457544, 34701628, 38071930, 40707679, 43377035, 69403256, 76143860, 81415358, 86754070, 152287720, 162830716, 173508140, 203538395, 325661432, 347016280, 407076790, 529199827, 814153580, 1058399654, 1628307160, 2116799308, 2645999135, 4233598616, 5291998270, 10583996540, 21167993080]

約数ペア:

[(1, 21167993080), (2, 10583996540), (4, 5291998270), (5, 4233598616), (8, 2645999135), (10, 2116799308), (13, 1628307160), (20, 1058399654), (26, 814153580), (40, 529199827), (52, 407076790), (61, 347016280), (65, 325661432), (104, 203538395), (122, 173508140), (130, 162830716), (139, 152287720), (244, 86754070), (260, 81415358), (278, 76143860), (305, 69403256), (488, 43377035), (520, 40707679), (556, 38071930), (610, 34701628), (695, 30457544), (793, 26693560), (1112, 19035965), (1220, 17350814), (1390, 15228772), (1586, 13346780), (1807, 11714440), (2440, 8675407), (2780, 7614386), (3172, 6673390), (3614, 5857220), (3965, 5338712), (4801, 4409080), (5560, 3807193), (6344, 3336695), (7228, 2928610), (7930, 2669356), (8479, 2496520), (9035, 2342888), (9602, 2204540), (14456, 1464305), (15860, 1334678), (16958, 1248260), (18070, 1171444), (19204, 1102270), (24005, 881816), (31720, 667339), (33916, 624130), (36140, 585722), (38408, 551135), (42395, 499304), (48010, 440908), (62413, 339160), (67832, 312065), (72280, 292861), (84790, 249652), (96020, 220454), (110227, 192040), (124826, 169580)]