1289860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 3284568

約数和(自身を除く): 1994708

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 41, 44, 52, 55, 65, 82, 110, 121, 130, 143, 164, 205, 220, 242, 260, 286, 410, 451, 484, 533, 572, 605, 715, 820, 902, 1066, 1210, 1430, 1573, 1804, 2132, 2255, 2420, 2665, 2860, 3146, 4510, 4961, 5330, 5863, 6292, 7865, 9020, 9922, 10660, 11726, 15730, 19844, 23452, 24805, 29315, 31460, 49610, 58630, 64493, 99220, 117260, 128986, 257972, 322465, 644930, 1289860]

約数ペア:

[(1, 1289860), (2, 644930), (4, 322465), (5, 257972), (10, 128986), (11, 117260), (13, 99220), (20, 64493), (22, 58630), (26, 49610), (41, 31460), (44, 29315), (52, 24805), (55, 23452), (65, 19844), (82, 15730), (110, 11726), (121, 10660), (130, 9922), (143, 9020), (164, 7865), (205, 6292), (220, 5863), (242, 5330), (260, 4961), (286, 4510), (410, 3146), (451, 2860), (484, 2665), (533, 2420), (572, 2255), (605, 2132), (715, 1804), (820, 1573), (902, 1430), (1066, 1210)]