21830945240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{9743}}^1$

素因数の和:9937

約数の個数: 128

約数和(自身を含む): 55002931200

約数和(自身を除く): 33171985960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 139, 155, 248, 260, 278, 310, 403, 520, 556, 620, 695, 806, 1112, 1240, 1390, 1612, 1807, 2015, 2780, 3224, 3614, 4030, 4309, 5560, 7228, 8060, 8618, 9035, 9743, 14456, 16120, 17236, 18070, 19486, 21545, 34472, 36140, 38972, 43090, 48715, 56017, 72280, 77944, 86180, 97430, 112034, 126659, 172360, 194860, 224068, 253318, 280085, 302033, 389720, 448136, 506636, 560170, 604066, 633295, 1013272, 1120340, 1208132, 1266590, 1354277, 1510165, 2240680, 2416264, 2533180, 2708554, 3020330, 3926429, 5066360, 5417108, 6040660, 6771385, 7852858, 10834216, 12081320, 13542770, 15705716, 17605601, 19632145, 27085540, 31411432, 35211202, 39264290, 41982587, 54171080, 70422404, 78528580, 83965174, 88028005, 140844808, 157057160, 167930348, 176056010, 209912935, 335860696, 352112020, 419825870, 545773631, 704224040, 839651740, 1091547262, 1679303480, 2183094524, 2728868155, 4366189048, 5457736310, 10915472620, 21830945240]

約数ペア:

[(1, 21830945240), (2, 10915472620), (4, 5457736310), (5, 4366189048), (8, 2728868155), (10, 2183094524), (13, 1679303480), (20, 1091547262), (26, 839651740), (31, 704224040), (40, 545773631), (52, 419825870), (62, 352112020), (65, 335860696), (104, 209912935), (124, 176056010), (130, 167930348), (139, 157057160), (155, 140844808), (248, 88028005), (260, 83965174), (278, 78528580), (310, 70422404), (403, 54171080), (520, 41982587), (556, 39264290), (620, 35211202), (695, 31411432), (806, 27085540), (1112, 19632145), (1240, 17605601), (1390, 15705716), (1612, 13542770), (1807, 12081320), (2015, 10834216), (2780, 7852858), (3224, 6771385), (3614, 6040660), (4030, 5417108), (4309, 5066360), (5560, 3926429), (7228, 3020330), (8060, 2708554), (8618, 2533180), (9035, 2416264), (9743, 2240680), (14456, 1510165), (16120, 1354277), (17236, 1266590), (18070, 1208132), (19486, 1120340), (21545, 1013272), (34472, 633295), (36140, 604066), (38972, 560170), (43090, 506636), (48715, 448136), (56017, 389720), (72280, 302033), (77944, 280085), (86180, 253318), (97430, 224068), (112034, 194860), (126659, 172360)]