20197450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 48496896

約数和(自身を除く): 28299446

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 25, 26, 35, 46, 50, 65, 70, 91, 115, 130, 161, 175, 182, 193, 230, 299, 322, 325, 350, 386, 455, 575, 598, 650, 805, 910, 965, 1150, 1351, 1495, 1610, 1930, 2093, 2275, 2509, 2702, 2990, 4025, 4186, 4439, 4550, 4825, 5018, 6755, 7475, 8050, 8878, 9650, 10465, 12545, 13510, 14950, 17563, 20930, 22195, 25090, 31073, 33775, 35126, 44390, 52325, 57707, 62146, 62725, 67550, 87815, 104650, 110975, 115414, 125450, 155365, 175630, 221950, 288535, 310730, 403949, 439075, 577070, 776825, 807898, 878150, 1442675, 1553650, 2019745, 2885350, 4039490, 10098725, 20197450]

約数ペア:

[(1, 20197450), (2, 10098725), (5, 4039490), (7, 2885350), (10, 2019745), (13, 1553650), (14, 1442675), (23, 878150), (25, 807898), (26, 776825), (35, 577070), (46, 439075), (50, 403949), (65, 310730), (70, 288535), (91, 221950), (115, 175630), (130, 155365), (161, 125450), (175, 115414), (182, 110975), (193, 104650), (230, 87815), (299, 67550), (322, 62725), (325, 62146), (350, 57707), (386, 52325), (455, 44390), (575, 35126), (598, 33775), (650, 31073), (805, 25090), (910, 22195), (965, 20930), (1150, 17563), (1351, 14950), (1495, 13510), (1610, 12545), (1930, 10465), (2093, 9650), (2275, 8878), (2509, 8050), (2702, 7475), (2990, 6755), (4025, 5018), (4186, 4825), (4439, 4550)]