28176720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:861

約数の個数: 160

約数和(自身を含む): 102743424

約数和(自身を除く): 74566704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 104, 110, 120, 130, 132, 143, 156, 165, 176, 195, 208, 220, 240, 260, 264, 286, 312, 330, 390, 429, 440, 520, 528, 572, 624, 660, 715, 780, 821, 858, 880, 1040, 1144, 1320, 1430, 1560, 1642, 1716, 2145, 2288, 2463, 2640, 2860, 3120, 3284, 3432, 4105, 4290, 4926, 5720, 6568, 6864, 8210, 8580, 9031, 9852, 10673, 11440, 12315, 13136, 16420, 17160, 18062, 19704, 21346, 24630, 27093, 32019, 32840, 34320, 36124, 39408, 42692, 45155, 49260, 53365, 54186, 64038, 65680, 72248, 85384, 90310, 98520, 106730, 108372, 117403, 128076, 135465, 144496, 160095, 170768, 180620, 197040, 213460, 216744, 234806, 256152, 270930, 320190, 352209, 361240, 426920, 433488, 469612, 512304, 541860, 587015, 640380, 704418, 722480, 853840, 939224, 1083720, 1174030, 1280760, 1408836, 1761045, 1878448, 2167440, 2348060, 2561520, 2817672, 3522090, 4696120, 5635344, 7044180, 9392240, 14088360, 28176720]

約数ペア:

[(1, 28176720), (2, 14088360), (3, 9392240), (4, 7044180), (5, 5635344), (6, 4696120), (8, 3522090), (10, 2817672), (11, 2561520), (12, 2348060), (13, 2167440), (15, 1878448), (16, 1761045), (20, 1408836), (22, 1280760), (24, 1174030), (26, 1083720), (30, 939224), (33, 853840), (39, 722480), (40, 704418), (44, 640380), (48, 587015), (52, 541860), (55, 512304), (60, 469612), (65, 433488), (66, 426920), (78, 361240), (80, 352209), (88, 320190), (104, 270930), (110, 256152), (120, 234806), (130, 216744), (132, 213460), (143, 197040), (156, 180620), (165, 170768), (176, 160095), (195, 144496), (208, 135465), (220, 128076), (240, 117403), (260, 108372), (264, 106730), (286, 98520), (312, 90310), (330, 85384), (390, 72248), (429, 65680), (440, 64038), (520, 54186), (528, 53365), (572, 49260), (624, 45155), (660, 42692), (715, 39408), (780, 36124), (821, 34320), (858, 32840), (880, 32019), (1040, 27093), (1144, 24630), (1320, 21346), (1430, 19704), (1560, 18062), (1642, 17160), (1716, 16420), (2145, 13136), (2288, 12315), (2463, 11440), (2640, 10673), (2860, 9852), (3120, 9031), (3284, 8580), (3432, 8210), (4105, 6864), (4290, 6568), (4926, 5720)]