78028720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 231413760

約数和(自身を除く): 153385040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 80, 88, 106, 110, 112, 140, 154, 176, 212, 220, 239, 265, 280, 308, 371, 385, 424, 440, 478, 530, 560, 583, 616, 742, 770, 848, 880, 956, 1060, 1166, 1195, 1232, 1484, 1540, 1673, 1855, 1912, 2120, 2332, 2390, 2629, 2915, 2968, 3080, 3346, 3710, 3824, 4081, 4240, 4664, 4780, 5258, 5830, 5936, 6160, 6692, 7420, 8162, 8365, 9328, 9560, 10516, 11660, 12667, 13145, 13384, 14840, 16324, 16730, 18403, 19120, 20405, 21032, 23320, 25334, 26290, 26768, 29680, 32648, 33460, 36806, 40810, 42064, 46640, 50668, 52580, 63335, 65296, 66920, 73612, 81620, 88669, 92015, 101336, 105160, 126670, 133840, 139337, 147224, 163240, 177338, 184030, 202672, 210320, 253340, 278674, 294448, 326480, 354676, 368060, 443345, 506680, 557348, 696685, 709352, 736120, 886690, 975359, 1013360, 1114696, 1393370, 1418704, 1472240, 1773380, 1950718, 2229392, 2786740, 3546760, 3901436, 4876795, 5573480, 7093520, 7802872, 9753590, 11146960, 15605744, 19507180, 39014360, 78028720]

約数ペア:

[(1, 78028720), (2, 39014360), (4, 19507180), (5, 15605744), (7, 11146960), (8, 9753590), (10, 7802872), (11, 7093520), (14, 5573480), (16, 4876795), (20, 3901436), (22, 3546760), (28, 2786740), (35, 2229392), (40, 1950718), (44, 1773380), (53, 1472240), (55, 1418704), (56, 1393370), (70, 1114696), (77, 1013360), (80, 975359), (88, 886690), (106, 736120), (110, 709352), (112, 696685), (140, 557348), (154, 506680), (176, 443345), (212, 368060), (220, 354676), (239, 326480), (265, 294448), (280, 278674), (308, 253340), (371, 210320), (385, 202672), (424, 184030), (440, 177338), (478, 163240), (530, 147224), (560, 139337), (583, 133840), (616, 126670), (742, 105160), (770, 101336), (848, 92015), (880, 88669), (956, 81620), (1060, 73612), (1166, 66920), (1195, 65296), (1232, 63335), (1484, 52580), (1540, 50668), (1673, 46640), (1855, 42064), (1912, 40810), (2120, 36806), (2332, 33460), (2390, 32648), (2629, 29680), (2915, 26768), (2968, 26290), (3080, 25334), (3346, 23320), (3710, 21032), (3824, 20405), (4081, 19120), (4240, 18403), (4664, 16730), (4780, 16324), (5258, 14840), (5830, 13384), (5936, 13145), (6160, 12667), (6692, 11660), (7420, 10516), (8162, 9560), (8365, 9328)]