243867720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{691}}^1$

素因数の和:895

約数の個数: 128

約数和(自身を含む): 780243840

約数和(自身を除く): 536376120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 173, 204, 255, 340, 346, 408, 510, 519, 680, 691, 692, 865, 1020, 1038, 1382, 1384, 1730, 2040, 2073, 2076, 2595, 2764, 2941, 3455, 3460, 4146, 4152, 5190, 5528, 5882, 6910, 6920, 8292, 8823, 10365, 10380, 11747, 11764, 13820, 14705, 16584, 17646, 20730, 20760, 23494, 23528, 27640, 29410, 35241, 35292, 41460, 44115, 46988, 58735, 58820, 70482, 70584, 82920, 88230, 93976, 117470, 117640, 119543, 140964, 176205, 176460, 234940, 239086, 281928, 352410, 352920, 358629, 469880, 478172, 597715, 704820, 717258, 956344, 1195430, 1409640, 1434516, 1793145, 2032231, 2390860, 2869032, 3586290, 4064462, 4781720, 6096693, 7172580, 8128924, 10161155, 12193386, 14345160, 16257848, 20322310, 24386772, 30483465, 40644620, 48773544, 60966930, 81289240, 121933860, 243867720]

約数ペア:

[(1, 243867720), (2, 121933860), (3, 81289240), (4, 60966930), (5, 48773544), (6, 40644620), (8, 30483465), (10, 24386772), (12, 20322310), (15, 16257848), (17, 14345160), (20, 12193386), (24, 10161155), (30, 8128924), (34, 7172580), (40, 6096693), (51, 4781720), (60, 4064462), (68, 3586290), (85, 2869032), (102, 2390860), (120, 2032231), (136, 1793145), (170, 1434516), (173, 1409640), (204, 1195430), (255, 956344), (340, 717258), (346, 704820), (408, 597715), (510, 478172), (519, 469880), (680, 358629), (691, 352920), (692, 352410), (865, 281928), (1020, 239086), (1038, 234940), (1382, 176460), (1384, 176205), (1730, 140964), (2040, 119543), (2073, 117640), (2076, 117470), (2595, 93976), (2764, 88230), (2941, 82920), (3455, 70584), (3460, 70482), (4146, 58820), (4152, 58735), (5190, 46988), (5528, 44115), (5882, 41460), (6910, 35292), (6920, 35241), (8292, 29410), (8823, 27640), (10365, 23528), (10380, 23494), (11747, 20760), (11764, 20730), (13820, 17646), (14705, 16584)]