19682480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 50353920

約数和(自身を除く): 30671440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 76, 80, 92, 95, 115, 152, 184, 190, 230, 304, 368, 380, 437, 460, 563, 760, 874, 920, 1126, 1520, 1748, 1840, 2185, 2252, 2815, 3496, 4370, 4504, 5630, 6992, 8740, 9008, 10697, 11260, 12949, 17480, 21394, 22520, 25898, 34960, 42788, 45040, 51796, 53485, 64745, 85576, 103592, 106970, 129490, 171152, 207184, 213940, 246031, 258980, 427880, 492062, 517960, 855760, 984124, 1035920, 1230155, 1968248, 2460310, 3936496, 4920620, 9841240, 19682480]

約数ペア:

[(1, 19682480), (2, 9841240), (4, 4920620), (5, 3936496), (8, 2460310), (10, 1968248), (16, 1230155), (19, 1035920), (20, 984124), (23, 855760), (38, 517960), (40, 492062), (46, 427880), (76, 258980), (80, 246031), (92, 213940), (95, 207184), (115, 171152), (152, 129490), (184, 106970), (190, 103592), (230, 85576), (304, 64745), (368, 53485), (380, 51796), (437, 45040), (460, 42788), (563, 34960), (760, 25898), (874, 22520), (920, 21394), (1126, 17480), (1520, 12949), (1748, 11260), (1840, 10697), (2185, 9008), (2252, 8740), (2815, 6992), (3496, 5630), (4370, 4504)]