19680390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 96

約数和(自身を含む): 57114720

約数和(自身を除く): 37434330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 19, 30, 34, 38, 45, 51, 57, 85, 90, 95, 102, 114, 153, 170, 171, 190, 255, 285, 306, 323, 342, 510, 570, 646, 677, 765, 855, 969, 1354, 1530, 1615, 1710, 1938, 2031, 2907, 3230, 3385, 4062, 4845, 5814, 6093, 6770, 9690, 10155, 11509, 12186, 12863, 14535, 20310, 23018, 25726, 29070, 30465, 34527, 38589, 57545, 60930, 64315, 69054, 77178, 103581, 115090, 115767, 128630, 172635, 192945, 207162, 218671, 231534, 345270, 385890, 437342, 517905, 578835, 656013, 1035810, 1093355, 1157670, 1312026, 1968039, 2186710, 3280065, 3936078, 6560130, 9840195, 19680390]

約数ペア:

[(1, 19680390), (2, 9840195), (3, 6560130), (5, 3936078), (6, 3280065), (9, 2186710), (10, 1968039), (15, 1312026), (17, 1157670), (18, 1093355), (19, 1035810), (30, 656013), (34, 578835), (38, 517905), (45, 437342), (51, 385890), (57, 345270), (85, 231534), (90, 218671), (95, 207162), (102, 192945), (114, 172635), (153, 128630), (170, 115767), (171, 115090), (190, 103581), (255, 77178), (285, 69054), (306, 64315), (323, 60930), (342, 57545), (510, 38589), (570, 34527), (646, 30465), (677, 29070), (765, 25726), (855, 23018), (969, 20310), (1354, 14535), (1530, 12863), (1615, 12186), (1710, 11509), (1938, 10155), (2031, 9690), (2907, 6770), (3230, 6093), (3385, 5814), (4062, 4845)]