20123585560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{4051}}^1$

素因数の和:4349

約数の個数: 128

約数和(自身を含む): 50177050560

約数和(自身を除く): 30053465000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 233, 260, 328, 410, 466, 520, 533, 820, 932, 1066, 1165, 1640, 1864, 2132, 2330, 2665, 3029, 4051, 4264, 4660, 5330, 6058, 8102, 9320, 9553, 10660, 12116, 15145, 16204, 19106, 20255, 21320, 24232, 30290, 32408, 38212, 40510, 47765, 52663, 60580, 76424, 81020, 95530, 105326, 121160, 124189, 162040, 166091, 191060, 210652, 248378, 263315, 332182, 382120, 421304, 496756, 526630, 620945, 664364, 830455, 943883, 993512, 1053260, 1241890, 1328728, 1660910, 1887766, 2106520, 2159183, 2483780, 3321820, 3775532, 4318366, 4719415, 4967560, 6643640, 7551064, 8636732, 9438830, 10795915, 12270479, 17273464, 18877660, 21591830, 24540958, 37755320, 38699203, 43183660, 49081916, 61352395, 77398406, 86367320, 98163832, 122704790, 154796812, 193496015, 245409580, 309593624, 386992030, 490819160, 503089639, 773984060, 1006179278, 1547968120, 2012358556, 2515448195, 4024717112, 5030896390, 10061792780, 20123585560]

約数ペア:

[(1, 20123585560), (2, 10061792780), (4, 5030896390), (5, 4024717112), (8, 2515448195), (10, 2012358556), (13, 1547968120), (20, 1006179278), (26, 773984060), (40, 503089639), (41, 490819160), (52, 386992030), (65, 309593624), (82, 245409580), (104, 193496015), (130, 154796812), (164, 122704790), (205, 98163832), (233, 86367320), (260, 77398406), (328, 61352395), (410, 49081916), (466, 43183660), (520, 38699203), (533, 37755320), (820, 24540958), (932, 21591830), (1066, 18877660), (1165, 17273464), (1640, 12270479), (1864, 10795915), (2132, 9438830), (2330, 8636732), (2665, 7551064), (3029, 6643640), (4051, 4967560), (4264, 4719415), (4660, 4318366), (5330, 3775532), (6058, 3321820), (8102, 2483780), (9320, 2159183), (9553, 2106520), (10660, 1887766), (12116, 1660910), (15145, 1328728), (16204, 1241890), (19106, 1053260), (20255, 993512), (21320, 943883), (24232, 830455), (30290, 664364), (32408, 620945), (38212, 526630), (40510, 496756), (47765, 421304), (52663, 382120), (60580, 332182), (76424, 263315), (81020, 248378), (95530, 210652), (105326, 191060), (121160, 166091), (124189, 162040)]