128215815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 270950400

約数和(自身を除く): 142734585

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 41, 65, 79, 87, 91, 105, 123, 145, 195, 203, 205, 237, 273, 287, 377, 395, 435, 455, 533, 553, 609, 615, 861, 1015, 1027, 1131, 1185, 1189, 1365, 1435, 1599, 1659, 1885, 2291, 2639, 2665, 2765, 3045, 3081, 3239, 3567, 3731, 4305, 5135, 5655, 5945, 6873, 7189, 7917, 7995, 8295, 8323, 9717, 11193, 11455, 13195, 15405, 15457, 16037, 16195, 17835, 18655, 21567, 22673, 24969, 29783, 34365, 35945, 39585, 41615, 42107, 46371, 48111, 48585, 55965, 68019, 77285, 80185, 89349, 93931, 107835, 108199, 113365, 124845, 126321, 148915, 208481, 210535, 231855, 240555, 281793, 294749, 324597, 340095, 446745, 469655, 540995, 625443, 631605, 657517, 884247, 1042405, 1221103, 1408965, 1473745, 1622985, 1972551, 3127215, 3287585, 3663309, 4421235, 6105515, 8547721, 9862755, 18316545, 25643163, 42738605, 128215815]

約数ペア:

[(1, 128215815), (3, 42738605), (5, 25643163), (7, 18316545), (13, 9862755), (15, 8547721), (21, 6105515), (29, 4421235), (35, 3663309), (39, 3287585), (41, 3127215), (65, 1972551), (79, 1622985), (87, 1473745), (91, 1408965), (105, 1221103), (123, 1042405), (145, 884247), (195, 657517), (203, 631605), (205, 625443), (237, 540995), (273, 469655), (287, 446745), (377, 340095), (395, 324597), (435, 294749), (455, 281793), (533, 240555), (553, 231855), (609, 210535), (615, 208481), (861, 148915), (1015, 126321), (1027, 124845), (1131, 113365), (1185, 108199), (1189, 107835), (1365, 93931), (1435, 89349), (1599, 80185), (1659, 77285), (1885, 68019), (2291, 55965), (2639, 48585), (2665, 48111), (2765, 46371), (3045, 42107), (3081, 41615), (3239, 39585), (3567, 35945), (3731, 34365), (4305, 29783), (5135, 24969), (5655, 22673), (5945, 21567), (6873, 18655), (7189, 17835), (7917, 16195), (7995, 16037), (8295, 15457), (8323, 15405), (9717, 13195), (11193, 11455)]