128090240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 331251120

約数和(自身を除く): 203160880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 64, 68, 80, 85, 122, 128, 136, 160, 170, 193, 244, 272, 305, 320, 340, 386, 488, 544, 610, 640, 680, 772, 965, 976, 1037, 1088, 1220, 1360, 1544, 1930, 1952, 2074, 2176, 2440, 2720, 3088, 3281, 3860, 3904, 4148, 4880, 5185, 5440, 6176, 6562, 7720, 7808, 8296, 9760, 10370, 10880, 11773, 12352, 13124, 15440, 16405, 16592, 19520, 20740, 23546, 24704, 26248, 30880, 32810, 33184, 39040, 41480, 47092, 52496, 58865, 61760, 65620, 66368, 82960, 94184, 104992, 117730, 123520, 131240, 132736, 165920, 188368, 200141, 209984, 235460, 262480, 331840, 376736, 400282, 419968, 470920, 524960, 663680, 753472, 800564, 941840, 1000705, 1049920, 1506944, 1601128, 1883680, 2001410, 2099840, 3202256, 3767360, 4002820, 6404512, 7534720, 8005640, 12809024, 16011280, 25618048, 32022560, 64045120, 128090240]

約数ペア:

[(1, 128090240), (2, 64045120), (4, 32022560), (5, 25618048), (8, 16011280), (10, 12809024), (16, 8005640), (17, 7534720), (20, 6404512), (32, 4002820), (34, 3767360), (40, 3202256), (61, 2099840), (64, 2001410), (68, 1883680), (80, 1601128), (85, 1506944), (122, 1049920), (128, 1000705), (136, 941840), (160, 800564), (170, 753472), (193, 663680), (244, 524960), (272, 470920), (305, 419968), (320, 400282), (340, 376736), (386, 331840), (488, 262480), (544, 235460), (610, 209984), (640, 200141), (680, 188368), (772, 165920), (965, 132736), (976, 131240), (1037, 123520), (1088, 117730), (1220, 104992), (1360, 94184), (1544, 82960), (1930, 66368), (1952, 65620), (2074, 61760), (2176, 58865), (2440, 52496), (2720, 47092), (3088, 41480), (3281, 39040), (3860, 33184), (3904, 32810), (4148, 30880), (4880, 26248), (5185, 24704), (5440, 23546), (6176, 20740), (6562, 19520), (7720, 16592), (7808, 16405), (8296, 15440), (9760, 13124), (10370, 12352), (10880, 11773)]