20885790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 51907392

約数和(自身を除く): 31021602

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 101, 113, 122, 183, 202, 226, 303, 305, 339, 366, 505, 565, 606, 610, 678, 915, 1010, 1130, 1515, 1695, 1830, 3030, 3390, 6161, 6893, 11413, 12322, 13786, 18483, 20679, 22826, 30805, 34239, 34465, 36966, 41358, 57065, 61610, 68478, 68930, 92415, 103395, 114130, 171195, 184830, 206790, 342390, 696193, 1392386, 2088579, 3480965, 4177158, 6961930, 10442895, 20885790]

約数ペア:

[(1, 20885790), (2, 10442895), (3, 6961930), (5, 4177158), (6, 3480965), (10, 2088579), (15, 1392386), (30, 696193), (61, 342390), (101, 206790), (113, 184830), (122, 171195), (183, 114130), (202, 103395), (226, 92415), (303, 68930), (305, 68478), (339, 61610), (366, 57065), (505, 41358), (565, 36966), (606, 34465), (610, 34239), (678, 30805), (915, 22826), (1010, 20679), (1130, 18483), (1515, 13786), (1695, 12322), (1830, 11413), (3030, 6893), (3390, 6161)]