20178600

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 68076000

約数和(自身を除く): 47897400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 169, 195, 199, 200, 260, 300, 312, 325, 338, 390, 398, 507, 520, 597, 600, 650, 676, 780, 796, 845, 975, 995, 1014, 1194, 1300, 1352, 1560, 1592, 1690, 1950, 1990, 2028, 2388, 2535, 2587, 2600, 2985, 3380, 3900, 3980, 4056, 4225, 4776, 4975, 5070, 5174, 5970, 6760, 7761, 7800, 7960, 8450, 9950, 10140, 10348, 11940, 12675, 12935, 14925, 15522, 16900, 19900, 20280, 20696, 23880, 25350, 25870, 29850, 31044, 33631, 33800, 38805, 39800, 50700, 51740, 59700, 62088, 64675, 67262, 77610, 100893, 101400, 103480, 119400, 129350, 134524, 155220, 168155, 194025, 201786, 258700, 269048, 310440, 336310, 388050, 403572, 504465, 517400, 672620, 776100, 807144, 840775, 1008930, 1345240, 1552200, 1681550, 2017860, 2522325, 3363100, 4035720, 5044650, 6726200, 10089300, 20178600]

約数ペア:

[(1, 20178600), (2, 10089300), (3, 6726200), (4, 5044650), (5, 4035720), (6, 3363100), (8, 2522325), (10, 2017860), (12, 1681550), (13, 1552200), (15, 1345240), (20, 1008930), (24, 840775), (25, 807144), (26, 776100), (30, 672620), (39, 517400), (40, 504465), (50, 403572), (52, 388050), (60, 336310), (65, 310440), (75, 269048), (78, 258700), (100, 201786), (104, 194025), (120, 168155), (130, 155220), (150, 134524), (156, 129350), (169, 119400), (195, 103480), (199, 101400), (200, 100893), (260, 77610), (300, 67262), (312, 64675), (325, 62088), (338, 59700), (390, 51740), (398, 50700), (507, 39800), (520, 38805), (597, 33800), (600, 33631), (650, 31044), (676, 29850), (780, 25870), (796, 25350), (845, 23880), (975, 20696), (995, 20280), (1014, 19900), (1194, 16900), (1300, 15522), (1352, 14925), (1560, 12935), (1592, 12675), (1690, 11940), (1950, 10348), (1990, 10140), (2028, 9950), (2388, 8450), (2535, 7960), (2587, 7800), (2600, 7761), (2985, 6760), (3380, 5970), (3900, 5174), (3980, 5070), (4056, 4975), (4225, 4776)]