20792460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 192

約数和(自身を含む): 69995520

約数和(自身を除く): 49203060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 23, 26, 30, 38, 39, 46, 52, 57, 60, 61, 65, 69, 76, 78, 92, 95, 114, 115, 122, 130, 138, 156, 183, 190, 195, 228, 230, 244, 247, 260, 276, 285, 299, 305, 345, 366, 380, 390, 437, 460, 494, 570, 598, 610, 690, 732, 741, 780, 793, 874, 897, 915, 988, 1140, 1159, 1196, 1220, 1235, 1311, 1380, 1403, 1482, 1495, 1586, 1748, 1794, 1830, 2185, 2318, 2379, 2470, 2622, 2806, 2964, 2990, 3172, 3477, 3588, 3660, 3705, 3965, 4209, 4370, 4485, 4636, 4758, 4940, 5244, 5612, 5681, 5795, 5980, 6555, 6954, 7015, 7410, 7930, 8418, 8740, 8970, 9516, 11362, 11590, 11895, 13110, 13908, 14030, 14820, 15067, 15860, 16836, 17043, 17385, 17940, 18239, 21045, 22724, 23180, 23790, 26220, 26657, 28060, 28405, 30134, 34086, 34770, 36478, 42090, 45201, 47580, 53314, 54717, 56810, 60268, 68172, 69540, 72956, 75335, 79971, 84180, 85215, 90402, 91195, 106628, 109434, 113620, 133285, 150670, 159942, 170430, 180804, 182390, 218868, 226005, 266570, 273585, 301340, 319884, 340860, 346541, 364780, 399855, 452010, 533140, 547170, 693082, 799710, 904020, 1039623, 1094340, 1386164, 1599420, 1732705, 2079246, 3465410, 4158492, 5198115, 6930820, 10396230, 20792460]

約数ペア:

[(1, 20792460), (2, 10396230), (3, 6930820), (4, 5198115), (5, 4158492), (6, 3465410), (10, 2079246), (12, 1732705), (13, 1599420), (15, 1386164), (19, 1094340), (20, 1039623), (23, 904020), (26, 799710), (30, 693082), (38, 547170), (39, 533140), (46, 452010), (52, 399855), (57, 364780), (60, 346541), (61, 340860), (65, 319884), (69, 301340), (76, 273585), (78, 266570), (92, 226005), (95, 218868), (114, 182390), (115, 180804), (122, 170430), (130, 159942), (138, 150670), (156, 133285), (183, 113620), (190, 109434), (195, 106628), (228, 91195), (230, 90402), (244, 85215), (247, 84180), (260, 79971), (276, 75335), (285, 72956), (299, 69540), (305, 68172), (345, 60268), (366, 56810), (380, 54717), (390, 53314), (437, 47580), (460, 45201), (494, 42090), (570, 36478), (598, 34770), (610, 34086), (690, 30134), (732, 28405), (741, 28060), (780, 26657), (793, 26220), (874, 23790), (897, 23180), (915, 22724), (988, 21045), (1140, 18239), (1159, 17940), (1196, 17385), (1220, 17043), (1235, 16836), (1311, 15860), (1380, 15067), (1403, 14820), (1482, 14030), (1495, 13908), (1586, 13110), (1748, 11895), (1794, 11590), (1830, 11362), (2185, 9516), (2318, 8970), (2379, 8740), (2470, 8418), (2622, 7930), (2806, 7410), (2964, 7015), (2990, 6954), (3172, 6555), (3477, 5980), (3588, 5795), (3660, 5681), (3705, 5612), (3965, 5244), (4209, 4940), (4370, 4758), (4485, 4636)]