28356900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:702

約数の個数: 144

約数和(自身を含む): 96535488

約数和(自身を除く): 68178588

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 100, 110, 130, 132, 143, 150, 156, 165, 195, 220, 260, 275, 286, 300, 325, 330, 390, 429, 550, 572, 650, 660, 661, 715, 780, 825, 858, 975, 1100, 1300, 1322, 1430, 1650, 1716, 1950, 1983, 2145, 2644, 2860, 3300, 3305, 3575, 3900, 3966, 4290, 6610, 7150, 7271, 7932, 8580, 8593, 9915, 10725, 13220, 14300, 14542, 16525, 17186, 19830, 21450, 21813, 25779, 29084, 33050, 34372, 36355, 39660, 42900, 42965, 43626, 49575, 51558, 66100, 72710, 85930, 87252, 94523, 99150, 103116, 109065, 128895, 145420, 171860, 181775, 189046, 198300, 214825, 218130, 257790, 283569, 363550, 378092, 429650, 436260, 472615, 515580, 545325, 567138, 644475, 727100, 859300, 945230, 1090650, 1134276, 1288950, 1417845, 1890460, 2181300, 2363075, 2577900, 2835690, 4726150, 5671380, 7089225, 9452300, 14178450, 28356900]

約数ペア:

[(1, 28356900), (2, 14178450), (3, 9452300), (4, 7089225), (5, 5671380), (6, 4726150), (10, 2835690), (11, 2577900), (12, 2363075), (13, 2181300), (15, 1890460), (20, 1417845), (22, 1288950), (25, 1134276), (26, 1090650), (30, 945230), (33, 859300), (39, 727100), (44, 644475), (50, 567138), (52, 545325), (55, 515580), (60, 472615), (65, 436260), (66, 429650), (75, 378092), (78, 363550), (100, 283569), (110, 257790), (130, 218130), (132, 214825), (143, 198300), (150, 189046), (156, 181775), (165, 171860), (195, 145420), (220, 128895), (260, 109065), (275, 103116), (286, 99150), (300, 94523), (325, 87252), (330, 85930), (390, 72710), (429, 66100), (550, 51558), (572, 49575), (650, 43626), (660, 42965), (661, 42900), (715, 39660), (780, 36355), (825, 34372), (858, 33050), (975, 29084), (1100, 25779), (1300, 21813), (1322, 21450), (1430, 19830), (1650, 17186), (1716, 16525), (1950, 14542), (1983, 14300), (2145, 13220), (2644, 10725), (2860, 9915), (3300, 8593), (3305, 8580), (3575, 7932), (3900, 7271), (3966, 7150), (4290, 6610)]