400920480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2003}}^1$

素因数の和:2163

約数の個数: 144

約数和(自身を含む): 1378671840

約数和(自身を除く): 977751360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 139, 144, 160, 180, 240, 278, 288, 360, 417, 480, 556, 695, 720, 834, 1112, 1251, 1390, 1440, 1668, 2003, 2085, 2224, 2502, 2780, 3336, 4006, 4170, 4448, 5004, 5560, 6009, 6255, 6672, 8012, 8340, 10008, 10015, 11120, 12018, 12510, 13344, 16024, 16680, 18027, 20016, 20030, 22240, 24036, 25020, 30045, 32048, 33360, 36054, 40032, 40060, 48072, 50040, 60090, 64096, 66720, 72108, 80120, 90135, 96144, 100080, 120180, 144216, 160240, 180270, 192288, 200160, 240360, 278417, 288432, 320480, 360540, 480720, 556834, 576864, 721080, 835251, 961440, 1113668, 1392085, 1442160, 1670502, 2227336, 2505753, 2784170, 2884320, 3341004, 4176255, 4454672, 5011506, 5568340, 6682008, 8352510, 8909344, 10023012, 11136680, 12528765, 13364016, 16705020, 20046024, 22273360, 25057530, 26728032, 33410040, 40092048, 44546720, 50115060, 66820080, 80184096, 100230120, 133640160, 200460240, 400920480]

約数ペア:

[(1, 400920480), (2, 200460240), (3, 133640160), (4, 100230120), (5, 80184096), (6, 66820080), (8, 50115060), (9, 44546720), (10, 40092048), (12, 33410040), (15, 26728032), (16, 25057530), (18, 22273360), (20, 20046024), (24, 16705020), (30, 13364016), (32, 12528765), (36, 11136680), (40, 10023012), (45, 8909344), (48, 8352510), (60, 6682008), (72, 5568340), (80, 5011506), (90, 4454672), (96, 4176255), (120, 3341004), (139, 2884320), (144, 2784170), (160, 2505753), (180, 2227336), (240, 1670502), (278, 1442160), (288, 1392085), (360, 1113668), (417, 961440), (480, 835251), (556, 721080), (695, 576864), (720, 556834), (834, 480720), (1112, 360540), (1251, 320480), (1390, 288432), (1440, 278417), (1668, 240360), (2003, 200160), (2085, 192288), (2224, 180270), (2502, 160240), (2780, 144216), (3336, 120180), (4006, 100080), (4170, 96144), (4448, 90135), (5004, 80120), (5560, 72108), (6009, 66720), (6255, 64096), (6672, 60090), (8012, 50040), (8340, 48072), (10008, 40060), (10015, 40032), (11120, 36054), (12018, 33360), (12510, 32048), (13344, 30045), (16024, 25020), (16680, 24036), (18027, 22240), (20016, 20030)]