20002800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 65194240

約数和(自身を除く): 45191440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 79, 80, 100, 120, 150, 158, 200, 211, 237, 240, 300, 316, 395, 400, 422, 474, 600, 632, 633, 790, 844, 948, 1055, 1185, 1200, 1264, 1266, 1580, 1688, 1896, 1975, 2110, 2370, 2532, 3160, 3165, 3376, 3792, 3950, 4220, 4740, 5064, 5275, 5925, 6320, 6330, 7900, 8440, 9480, 10128, 10550, 11850, 12660, 15800, 15825, 16669, 16880, 18960, 21100, 23700, 25320, 31600, 31650, 33338, 42200, 47400, 50007, 50640, 63300, 66676, 83345, 84400, 94800, 100014, 126600, 133352, 166690, 200028, 250035, 253200, 266704, 333380, 400056, 416725, 500070, 666760, 800112, 833450, 1000140, 1250175, 1333520, 1666900, 2000280, 2500350, 3333800, 4000560, 5000700, 6667600, 10001400, 20002800]

約数ペア:

[(1, 20002800), (2, 10001400), (3, 6667600), (4, 5000700), (5, 4000560), (6, 3333800), (8, 2500350), (10, 2000280), (12, 1666900), (15, 1333520), (16, 1250175), (20, 1000140), (24, 833450), (25, 800112), (30, 666760), (40, 500070), (48, 416725), (50, 400056), (60, 333380), (75, 266704), (79, 253200), (80, 250035), (100, 200028), (120, 166690), (150, 133352), (158, 126600), (200, 100014), (211, 94800), (237, 84400), (240, 83345), (300, 66676), (316, 63300), (395, 50640), (400, 50007), (422, 47400), (474, 42200), (600, 33338), (632, 31650), (633, 31600), (790, 25320), (844, 23700), (948, 21100), (1055, 18960), (1185, 16880), (1200, 16669), (1264, 15825), (1266, 15800), (1580, 12660), (1688, 11850), (1896, 10550), (1975, 10128), (2110, 9480), (2370, 8440), (2532, 7900), (3160, 6330), (3165, 6320), (3376, 5925), (3792, 5275), (3950, 5064), (4220, 4740)]