18991170048

素因数分解:

$2^9\times 3^1\times {\mathrm{563}}^1\times {\mathrm{21961}}^1$

素因数の和:22545

約数の個数: 80

約数和(自身を含む): 50685836256

約数和(自身を除く): 31694666208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 563, 768, 1126, 1536, 1689, 2252, 3378, 4504, 6756, 9008, 13512, 18016, 21961, 27024, 36032, 43922, 54048, 65883, 72064, 87844, 108096, 131766, 144128, 175688, 216192, 263532, 288256, 351376, 432384, 527064, 702752, 864768, 1054128, 1405504, 2108256, 2811008, 4216512, 5622016, 8433024, 11244032, 12364043, 16866048, 24728086, 33732096, 37092129, 49456172, 74184258, 98912344, 148368516, 197824688, 296737032, 395649376, 593474064, 791298752, 1186948128, 1582597504, 2373896256, 3165195008, 4747792512, 6330390016, 9495585024, 18991170048]

約数ペア:

[(1, 18991170048), (2, 9495585024), (3, 6330390016), (4, 4747792512), (6, 3165195008), (8, 2373896256), (12, 1582597504), (16, 1186948128), (24, 791298752), (32, 593474064), (48, 395649376), (64, 296737032), (96, 197824688), (128, 148368516), (192, 98912344), (256, 74184258), (384, 49456172), (512, 37092129), (563, 33732096), (768, 24728086), (1126, 16866048), (1536, 12364043), (1689, 11244032), (2252, 8433024), (3378, 5622016), (4504, 4216512), (6756, 2811008), (9008, 2108256), (13512, 1405504), (18016, 1054128), (21961, 864768), (27024, 702752), (36032, 527064), (43922, 432384), (54048, 351376), (65883, 288256), (72064, 263532), (87844, 216192), (108096, 175688), (131766, 144128)]