20573520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7793}}^1$

素因数の和:7820

約数の個数: 80

約数和(自身を含む): 69584832

約数和(自身を除く): 49011312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7793, 15586, 23379, 31172, 38965, 46758, 62344, 77930, 85723, 93516, 116895, 124688, 155860, 171446, 187032, 233790, 257169, 311720, 342892, 374064, 428615, 467580, 514338, 623440, 685784, 857230, 935160, 1028676, 1285845, 1371568, 1714460, 1870320, 2057352, 2571690, 3428920, 4114704, 5143380, 6857840, 10286760, 20573520]

約数ペア:

[(1, 20573520), (2, 10286760), (3, 6857840), (4, 5143380), (5, 4114704), (6, 3428920), (8, 2571690), (10, 2057352), (11, 1870320), (12, 1714460), (15, 1371568), (16, 1285845), (20, 1028676), (22, 935160), (24, 857230), (30, 685784), (33, 623440), (40, 514338), (44, 467580), (48, 428615), (55, 374064), (60, 342892), (66, 311720), (80, 257169), (88, 233790), (110, 187032), (120, 171446), (132, 155860), (165, 124688), (176, 116895), (220, 93516), (240, 85723), (264, 77930), (330, 62344), (440, 46758), (528, 38965), (660, 31172), (880, 23379), (1320, 15586), (2640, 7793)]