643410320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{15739}}^1$

素因数の和:15832

約数の個数: 80

約数和(自身を含む): 1733162880

約数和(自身を除く): 1089752560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 15739, 20440, 31478, 40880, 62956, 78695, 110173, 125912, 157390, 220346, 251824, 314780, 440692, 550865, 629560, 881384, 1101730, 1148947, 1259120, 1762768, 2203460, 2297894, 4406920, 4595788, 5744735, 8042629, 8813840, 9191576, 11489470, 16085258, 18383152, 22978940, 32170516, 40213145, 45957880, 64341032, 80426290, 91915760, 128682064, 160852580, 321705160, 643410320]

約数ペア:

[(1, 643410320), (2, 321705160), (4, 160852580), (5, 128682064), (7, 91915760), (8, 80426290), (10, 64341032), (14, 45957880), (16, 40213145), (20, 32170516), (28, 22978940), (35, 18383152), (40, 16085258), (56, 11489470), (70, 9191576), (73, 8813840), (80, 8042629), (112, 5744735), (140, 4595788), (146, 4406920), (280, 2297894), (292, 2203460), (365, 1762768), (511, 1259120), (560, 1148947), (584, 1101730), (730, 881384), (1022, 629560), (1168, 550865), (1460, 440692), (2044, 314780), (2555, 251824), (2920, 220346), (4088, 157390), (5110, 125912), (5840, 110173), (8176, 78695), (10220, 62956), (15739, 40880), (20440, 31478)]