20369520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1527

約数の個数: 120

約数和(自身を含む): 72056400

約数和(自身を除く): 51686880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1489, 1520, 1710, 2280, 2736, 2978, 3420, 4467, 4560, 5956, 6840, 7445, 8934, 11912, 13401, 13680, 14890, 17868, 22335, 23824, 26802, 28291, 29780, 35736, 44670, 53604, 56582, 59560, 67005, 71472, 84873, 89340, 107208, 113164, 119120, 134010, 141455, 169746, 178680, 214416, 226328, 254619, 268020, 282910, 339492, 357360, 424365, 452656, 509238, 536040, 565820, 678984, 848730, 1018476, 1072080, 1131640, 1273095, 1357968, 1697460, 2036952, 2263280, 2546190, 3394920, 4073904, 5092380, 6789840, 10184760, 20369520]

約数ペア:

[(1, 20369520), (2, 10184760), (3, 6789840), (4, 5092380), (5, 4073904), (6, 3394920), (8, 2546190), (9, 2263280), (10, 2036952), (12, 1697460), (15, 1357968), (16, 1273095), (18, 1131640), (19, 1072080), (20, 1018476), (24, 848730), (30, 678984), (36, 565820), (38, 536040), (40, 509238), (45, 452656), (48, 424365), (57, 357360), (60, 339492), (72, 282910), (76, 268020), (80, 254619), (90, 226328), (95, 214416), (114, 178680), (120, 169746), (144, 141455), (152, 134010), (171, 119120), (180, 113164), (190, 107208), (228, 89340), (240, 84873), (285, 71472), (304, 67005), (342, 59560), (360, 56582), (380, 53604), (456, 44670), (570, 35736), (684, 29780), (720, 28291), (760, 26802), (855, 23824), (912, 22335), (1140, 17868), (1368, 14890), (1489, 13680), (1520, 13401), (1710, 11912), (2280, 8934), (2736, 7445), (2978, 6840), (3420, 5956), (4467, 4560)]