18875835

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 20153925

約数列:

[1, 3, 5, 9, 11, 15, 19, 27, 33, 45, 55, 57, 81, 95, 99, 135, 165, 171, 209, 223, 285, 297, 405, 495, 513, 627, 669, 855, 891, 1045, 1115, 1485, 1539, 1881, 2007, 2453, 2565, 3135, 3345, 4237, 4455, 5643, 6021, 7359, 7695, 9405, 10035, 12265, 12711, 16929, 18063, 21185, 22077, 28215, 30105, 36795, 38133, 46607, 63555, 66231, 84645, 90315, 110385, 114399, 139821, 190665, 198693, 233035, 331155, 343197, 419463, 571995, 699105, 993465, 1258389, 1715985, 2097315, 3775167, 6291945, 18875835]

約数ペア:

[(1, 18875835), (3, 6291945), (5, 3775167), (9, 2097315), (11, 1715985), (15, 1258389), (19, 993465), (27, 699105), (33, 571995), (45, 419463), (55, 343197), (57, 331155), (81, 233035), (95, 198693), (99, 190665), (135, 139821), (165, 114399), (171, 110385), (209, 90315), (223, 84645), (285, 66231), (297, 63555), (405, 46607), (495, 38133), (513, 36795), (627, 30105), (669, 28215), (855, 22077), (891, 21185), (1045, 18063), (1115, 16929), (1485, 12711), (1539, 12265), (1881, 10035), (2007, 9405), (2453, 7695), (2565, 7359), (3135, 6021), (3345, 5643), (4237, 4455)]