19660160

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 53978400

約数和(自身を除く): 34318240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 139, 160, 170, 208, 221, 260, 272, 278, 320, 340, 416, 442, 520, 544, 556, 640, 680, 695, 832, 884, 1040, 1088, 1105, 1112, 1360, 1390, 1664, 1768, 1807, 2080, 2176, 2210, 2224, 2363, 2720, 2780, 3536, 3614, 4160, 4420, 4448, 4726, 5440, 5560, 7072, 7228, 8320, 8840, 8896, 9035, 9452, 10880, 11120, 11815, 14144, 14456, 17680, 17792, 18070, 18904, 22240, 23630, 28288, 28912, 30719, 35360, 36140, 37808, 44480, 47260, 57824, 61438, 70720, 72280, 75616, 88960, 94520, 115648, 122876, 141440, 144560, 151232, 153595, 189040, 231296, 245752, 289120, 302464, 307190, 378080, 491504, 578240, 614380, 756160, 983008, 1156480, 1228760, 1512320, 1966016, 2457520, 3932032, 4915040, 9830080, 19660160]

約数ペア:

[(1, 19660160), (2, 9830080), (4, 4915040), (5, 3932032), (8, 2457520), (10, 1966016), (13, 1512320), (16, 1228760), (17, 1156480), (20, 983008), (26, 756160), (32, 614380), (34, 578240), (40, 491504), (52, 378080), (64, 307190), (65, 302464), (68, 289120), (80, 245752), (85, 231296), (104, 189040), (128, 153595), (130, 151232), (136, 144560), (139, 141440), (160, 122876), (170, 115648), (208, 94520), (221, 88960), (260, 75616), (272, 72280), (278, 70720), (320, 61438), (340, 57824), (416, 47260), (442, 44480), (520, 37808), (544, 36140), (556, 35360), (640, 30719), (680, 28912), (695, 28288), (832, 23630), (884, 22240), (1040, 18904), (1088, 18070), (1105, 17792), (1112, 17680), (1360, 14456), (1390, 14144), (1664, 11815), (1768, 11120), (1807, 10880), (2080, 9452), (2176, 9035), (2210, 8896), (2224, 8840), (2363, 8320), (2720, 7228), (2780, 7072), (3536, 5560), (3614, 5440), (4160, 4726), (4420, 4448)]