198854320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15439}}^1$

素因数の和:15482

約数の個数: 80

約数和(自身を含む): 551393280

約数和(自身を除く): 352538960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 15439, 30878, 61756, 77195, 108073, 123512, 154390, 216146, 247024, 308780, 355097, 432292, 540365, 617560, 710194, 864584, 1080730, 1235120, 1420388, 1729168, 1775485, 2161460, 2485679, 2840776, 3550970, 4322920, 4971358, 5681552, 7101940, 8645840, 9942716, 12428395, 14203880, 19885432, 24856790, 28407760, 39770864, 49713580, 99427160, 198854320]

約数ペア:

[(1, 198854320), (2, 99427160), (4, 49713580), (5, 39770864), (7, 28407760), (8, 24856790), (10, 19885432), (14, 14203880), (16, 12428395), (20, 9942716), (23, 8645840), (28, 7101940), (35, 5681552), (40, 4971358), (46, 4322920), (56, 3550970), (70, 2840776), (80, 2485679), (92, 2161460), (112, 1775485), (115, 1729168), (140, 1420388), (161, 1235120), (184, 1080730), (230, 864584), (280, 710194), (322, 617560), (368, 540365), (460, 432292), (560, 355097), (644, 308780), (805, 247024), (920, 216146), (1288, 154390), (1610, 123512), (1840, 108073), (2576, 77195), (3220, 61756), (6440, 30878), (12880, 15439)]