20800320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:528

約数の個数: 112

約数和(自身を含む): 67592448

約数和(自身を除く): 46792128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 141, 160, 188, 192, 235, 240, 282, 320, 376, 461, 470, 480, 564, 705, 752, 922, 940, 960, 1128, 1383, 1410, 1504, 1844, 1880, 2256, 2305, 2766, 2820, 3008, 3688, 3760, 4512, 4610, 5532, 5640, 6915, 7376, 7520, 9024, 9220, 11064, 11280, 13830, 14752, 15040, 18440, 21667, 22128, 22560, 27660, 29504, 36880, 43334, 44256, 45120, 55320, 65001, 73760, 86668, 88512, 108335, 110640, 130002, 147520, 173336, 216670, 221280, 260004, 325005, 346672, 433340, 442560, 520008, 650010, 693344, 866680, 1040016, 1300020, 1386688, 1733360, 2080032, 2600040, 3466720, 4160064, 5200080, 6933440, 10400160, 20800320]

約数ペア:

[(1, 20800320), (2, 10400160), (3, 6933440), (4, 5200080), (5, 4160064), (6, 3466720), (8, 2600040), (10, 2080032), (12, 1733360), (15, 1386688), (16, 1300020), (20, 1040016), (24, 866680), (30, 693344), (32, 650010), (40, 520008), (47, 442560), (48, 433340), (60, 346672), (64, 325005), (80, 260004), (94, 221280), (96, 216670), (120, 173336), (141, 147520), (160, 130002), (188, 110640), (192, 108335), (235, 88512), (240, 86668), (282, 73760), (320, 65001), (376, 55320), (461, 45120), (470, 44256), (480, 43334), (564, 36880), (705, 29504), (752, 27660), (922, 22560), (940, 22128), (960, 21667), (1128, 18440), (1383, 15040), (1410, 14752), (1504, 13830), (1844, 11280), (1880, 11064), (2256, 9220), (2305, 9024), (2766, 7520), (2820, 7376), (3008, 6915), (3688, 5640), (3760, 5532), (4512, 4610)]