20544320

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 112

約数和(自身を含む): 53644800

約数和(自身を除く): 33100480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 109, 124, 152, 155, 160, 190, 218, 248, 304, 310, 320, 380, 436, 496, 545, 589, 608, 620, 760, 872, 992, 1090, 1178, 1216, 1240, 1520, 1744, 1984, 2071, 2180, 2356, 2480, 2945, 3040, 3379, 3488, 4142, 4360, 4712, 4960, 5890, 6080, 6758, 6976, 8284, 8720, 9424, 9920, 10355, 11780, 13516, 16568, 16895, 17440, 18848, 20710, 23560, 27032, 33136, 33790, 34880, 37696, 41420, 47120, 54064, 64201, 66272, 67580, 82840, 94240, 108128, 128402, 132544, 135160, 165680, 188480, 216256, 256804, 270320, 321005, 331360, 513608, 540640, 642010, 662720, 1027216, 1081280, 1284020, 2054432, 2568040, 4108864, 5136080, 10272160, 20544320]

約数ペア:

[(1, 20544320), (2, 10272160), (4, 5136080), (5, 4108864), (8, 2568040), (10, 2054432), (16, 1284020), (19, 1081280), (20, 1027216), (31, 662720), (32, 642010), (38, 540640), (40, 513608), (62, 331360), (64, 321005), (76, 270320), (80, 256804), (95, 216256), (109, 188480), (124, 165680), (152, 135160), (155, 132544), (160, 128402), (190, 108128), (218, 94240), (248, 82840), (304, 67580), (310, 66272), (320, 64201), (380, 54064), (436, 47120), (496, 41420), (545, 37696), (589, 34880), (608, 33790), (620, 33136), (760, 27032), (872, 23560), (992, 20710), (1090, 18848), (1178, 17440), (1216, 16895), (1240, 16568), (1520, 13516), (1744, 11780), (1984, 10355), (2071, 9920), (2180, 9424), (2356, 8720), (2480, 8284), (2945, 6976), (3040, 6758), (3379, 6080), (3488, 5890), (4142, 4960), (4360, 4712)]