2220400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 6673184

約数和(自身を除く): 4452784

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 61, 65, 70, 80, 91, 100, 104, 112, 122, 130, 140, 175, 182, 200, 208, 244, 260, 280, 305, 325, 350, 364, 400, 427, 455, 488, 520, 560, 610, 650, 700, 728, 793, 854, 910, 976, 1040, 1220, 1300, 1400, 1456, 1525, 1586, 1708, 1820, 2135, 2275, 2440, 2600, 2800, 3050, 3172, 3416, 3640, 3965, 4270, 4550, 4880, 5200, 5551, 6100, 6344, 6832, 7280, 7930, 8540, 9100, 10675, 11102, 12200, 12688, 15860, 17080, 18200, 19825, 21350, 22204, 24400, 27755, 31720, 34160, 36400, 39650, 42700, 44408, 55510, 63440, 79300, 85400, 88816, 111020, 138775, 158600, 170800, 222040, 277550, 317200, 444080, 555100, 1110200, 2220400]

約数ペア:

[(1, 2220400), (2, 1110200), (4, 555100), (5, 444080), (7, 317200), (8, 277550), (10, 222040), (13, 170800), (14, 158600), (16, 138775), (20, 111020), (25, 88816), (26, 85400), (28, 79300), (35, 63440), (40, 55510), (50, 44408), (52, 42700), (56, 39650), (61, 36400), (65, 34160), (70, 31720), (80, 27755), (91, 24400), (100, 22204), (104, 21350), (112, 19825), (122, 18200), (130, 17080), (140, 15860), (175, 12688), (182, 12200), (200, 11102), (208, 10675), (244, 9100), (260, 8540), (280, 7930), (305, 7280), (325, 6832), (350, 6344), (364, 6100), (400, 5551), (427, 5200), (455, 4880), (488, 4550), (520, 4270), (560, 3965), (610, 3640), (650, 3416), (700, 3172), (728, 3050), (793, 2800), (854, 2600), (910, 2440), (976, 2275), (1040, 2135), (1220, 1820), (1300, 1708), (1400, 1586), (1456, 1525)]