195928840

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 449064000

約数和(自身を除く): 253135160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 139, 262, 269, 278, 524, 538, 556, 655, 695, 1048, 1076, 1112, 1310, 1345, 1390, 2152, 2620, 2690, 2780, 5240, 5380, 5560, 10760, 18209, 35239, 36418, 37391, 70478, 72836, 74782, 91045, 140956, 145672, 149564, 176195, 182090, 186955, 281912, 299128, 352390, 364180, 373910, 704780, 728360, 747820, 1409560, 1495640, 4898221, 9796442, 19592884, 24491105, 39185768, 48982210, 97964420, 195928840]

約数ペア:

[(1, 195928840), (2, 97964420), (4, 48982210), (5, 39185768), (8, 24491105), (10, 19592884), (20, 9796442), (40, 4898221), (131, 1495640), (139, 1409560), (262, 747820), (269, 728360), (278, 704780), (524, 373910), (538, 364180), (556, 352390), (655, 299128), (695, 281912), (1048, 186955), (1076, 182090), (1112, 176195), (1310, 149564), (1345, 145672), (1390, 140956), (2152, 91045), (2620, 74782), (2690, 72836), (2780, 70478), (5240, 37391), (5380, 36418), (5560, 35239), (10760, 18209)]