78811905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 139392000

約数和(自身を除く): 60580095

約数列:

[1, 3, 5, 15, 19, 43, 57, 59, 95, 109, 129, 177, 215, 285, 295, 327, 545, 645, 817, 885, 1121, 1635, 2071, 2451, 2537, 3363, 4085, 4687, 5605, 6213, 6431, 7611, 10355, 12255, 12685, 14061, 16815, 19293, 23435, 31065, 32155, 38055, 48203, 70305, 89053, 96465, 122189, 144609, 241015, 267159, 276533, 366567, 445265, 610945, 723045, 829599, 1335795, 1382665, 1832835, 4147995, 5254127, 15762381, 26270635, 78811905]

約数ペア:

[(1, 78811905), (3, 26270635), (5, 15762381), (15, 5254127), (19, 4147995), (43, 1832835), (57, 1382665), (59, 1335795), (95, 829599), (109, 723045), (129, 610945), (177, 445265), (215, 366567), (285, 276533), (295, 267159), (327, 241015), (545, 144609), (645, 122189), (817, 96465), (885, 89053), (1121, 70305), (1635, 48203), (2071, 38055), (2451, 32155), (2537, 31065), (3363, 23435), (4085, 19293), (4687, 16815), (5605, 14061), (6213, 12685), (6431, 12255), (7611, 10355)]