28487520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:365

約数の個数: 144

約数和(自身を含む): 98908992

約数和(自身を除く): 70421472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 73, 80, 90, 96, 120, 144, 146, 160, 180, 219, 240, 271, 288, 292, 360, 365, 438, 480, 542, 584, 657, 720, 730, 813, 876, 1084, 1095, 1168, 1314, 1355, 1440, 1460, 1626, 1752, 2168, 2190, 2336, 2439, 2628, 2710, 2920, 3252, 3285, 3504, 4065, 4336, 4380, 4878, 5256, 5420, 5840, 6504, 6570, 7008, 8130, 8672, 8760, 9756, 10512, 10840, 11680, 12195, 13008, 13140, 16260, 17520, 19512, 19783, 21024, 21680, 24390, 26016, 26280, 32520, 35040, 39024, 39566, 43360, 48780, 52560, 59349, 65040, 78048, 79132, 97560, 98915, 105120, 118698, 130080, 158264, 178047, 195120, 197830, 237396, 296745, 316528, 356094, 390240, 395660, 474792, 593490, 633056, 712188, 791320, 890235, 949584, 1186980, 1424376, 1582640, 1780470, 1899168, 2373960, 2848752, 3165280, 3560940, 4747920, 5697504, 7121880, 9495840, 14243760, 28487520]

約数ペア:

[(1, 28487520), (2, 14243760), (3, 9495840), (4, 7121880), (5, 5697504), (6, 4747920), (8, 3560940), (9, 3165280), (10, 2848752), (12, 2373960), (15, 1899168), (16, 1780470), (18, 1582640), (20, 1424376), (24, 1186980), (30, 949584), (32, 890235), (36, 791320), (40, 712188), (45, 633056), (48, 593490), (60, 474792), (72, 395660), (73, 390240), (80, 356094), (90, 316528), (96, 296745), (120, 237396), (144, 197830), (146, 195120), (160, 178047), (180, 158264), (219, 130080), (240, 118698), (271, 105120), (288, 98915), (292, 97560), (360, 79132), (365, 78048), (438, 65040), (480, 59349), (542, 52560), (584, 48780), (657, 43360), (720, 39566), (730, 39024), (813, 35040), (876, 32520), (1084, 26280), (1095, 26016), (1168, 24390), (1314, 21680), (1355, 21024), (1440, 19783), (1460, 19512), (1626, 17520), (1752, 16260), (2168, 13140), (2190, 13008), (2336, 12195), (2439, 11680), (2628, 10840), (2710, 10512), (2920, 9756), (3252, 8760), (3285, 8672), (3504, 8130), (4065, 7008), (4336, 6570), (4380, 6504), (4878, 5840), (5256, 5420)]