1821720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:97

約数の個数: 128

約数和(自身を含む): 6220800

約数和(自身を除く): 4399080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 47, 51, 57, 60, 68, 76, 85, 94, 95, 102, 114, 120, 136, 141, 152, 170, 188, 190, 204, 228, 235, 255, 282, 285, 323, 340, 376, 380, 408, 456, 470, 510, 564, 570, 646, 680, 705, 760, 799, 893, 940, 969, 1020, 1128, 1140, 1292, 1410, 1598, 1615, 1786, 1880, 1938, 2040, 2280, 2397, 2584, 2679, 2820, 3196, 3230, 3572, 3876, 3995, 4465, 4794, 4845, 5358, 5640, 6392, 6460, 7144, 7752, 7990, 8930, 9588, 9690, 10716, 11985, 12920, 13395, 15181, 15980, 17860, 19176, 19380, 21432, 23970, 26790, 30362, 31960, 35720, 38760, 45543, 47940, 53580, 60724, 75905, 91086, 95880, 107160, 121448, 151810, 182172, 227715, 303620, 364344, 455430, 607240, 910860, 1821720]

約数ペア:

[(1, 1821720), (2, 910860), (3, 607240), (4, 455430), (5, 364344), (6, 303620), (8, 227715), (10, 182172), (12, 151810), (15, 121448), (17, 107160), (19, 95880), (20, 91086), (24, 75905), (30, 60724), (34, 53580), (38, 47940), (40, 45543), (47, 38760), (51, 35720), (57, 31960), (60, 30362), (68, 26790), (76, 23970), (85, 21432), (94, 19380), (95, 19176), (102, 17860), (114, 15980), (120, 15181), (136, 13395), (141, 12920), (152, 11985), (170, 10716), (188, 9690), (190, 9588), (204, 8930), (228, 7990), (235, 7752), (255, 7144), (282, 6460), (285, 6392), (323, 5640), (340, 5358), (376, 4845), (380, 4794), (408, 4465), (456, 3995), (470, 3876), (510, 3572), (564, 3230), (570, 3196), (646, 2820), (680, 2679), (705, 2584), (760, 2397), (799, 2280), (893, 2040), (940, 1938), (969, 1880), (1020, 1786), (1128, 1615), (1140, 1598), (1292, 1410)]