1218091420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{3739}}^1$

素因数の和:3947

約数の個数: 96

約数和(自身を含む): 3166732800

約数和(自身を除く): 1948641380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 179, 182, 260, 358, 364, 455, 716, 895, 910, 1253, 1790, 1820, 2327, 2506, 3580, 3739, 4654, 5012, 6265, 7478, 9308, 11635, 12530, 14956, 16289, 18695, 23270, 25060, 26173, 32578, 37390, 46540, 48607, 52346, 65156, 74780, 81445, 97214, 104692, 130865, 162890, 194428, 243035, 261730, 325780, 340249, 486070, 523460, 669281, 680498, 972140, 1338562, 1360996, 1701245, 2677124, 3346405, 3402490, 4684967, 6692810, 6804980, 8700653, 9369934, 13385620, 17401306, 18739868, 23424835, 34802612, 43503265, 46849670, 60904571, 87006530, 93699340, 121809142, 174013060, 243618284, 304522855, 609045710, 1218091420]

約数ペア:

[(1, 1218091420), (2, 609045710), (4, 304522855), (5, 243618284), (7, 174013060), (10, 121809142), (13, 93699340), (14, 87006530), (20, 60904571), (26, 46849670), (28, 43503265), (35, 34802612), (52, 23424835), (65, 18739868), (70, 17401306), (91, 13385620), (130, 9369934), (140, 8700653), (179, 6804980), (182, 6692810), (260, 4684967), (358, 3402490), (364, 3346405), (455, 2677124), (716, 1701245), (895, 1360996), (910, 1338562), (1253, 972140), (1790, 680498), (1820, 669281), (2327, 523460), (2506, 486070), (3580, 340249), (3739, 325780), (4654, 261730), (5012, 243035), (6265, 194428), (7478, 162890), (9308, 130865), (11635, 104692), (12530, 97214), (14956, 81445), (16289, 74780), (18695, 65156), (23270, 52346), (25060, 48607), (26173, 46540), (32578, 37390)]