28730988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5581}}^1$

素因数の和:5615

約数の個数: 72

約数和(自身を含む): 85337616

約数和(自身を除く): 56606628

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 5148, 5581, 11162, 16743, 22324, 33486, 50229, 61391, 66972, 72553, 100458, 122782, 145106, 184173, 200916, 217659, 245564, 290212, 368346, 435318, 552519, 652977, 736692, 798083, 870636, 1105038, 1305954, 1596166, 2210076, 2394249, 2611908, 3192332, 4788498, 7182747, 9576996, 14365494, 28730988]

約数ペア:

[(1, 28730988), (2, 14365494), (3, 9576996), (4, 7182747), (6, 4788498), (9, 3192332), (11, 2611908), (12, 2394249), (13, 2210076), (18, 1596166), (22, 1305954), (26, 1105038), (33, 870636), (36, 798083), (39, 736692), (44, 652977), (52, 552519), (66, 435318), (78, 368346), (99, 290212), (117, 245564), (132, 217659), (143, 200916), (156, 184173), (198, 145106), (234, 122782), (286, 100458), (396, 72553), (429, 66972), (468, 61391), (572, 50229), (858, 33486), (1287, 22324), (1716, 16743), (2574, 11162), (5148, 5581)]