28478268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8693}}^1$

素因数の和:8723

約数の個数: 72

約数和(自身を含む): 88609248

約数和(自身を除く): 60130980

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 8693, 17386, 26079, 34772, 52158, 60851, 78237, 104316, 113009, 121702, 156474, 182553, 226018, 243404, 312948, 339027, 365106, 452036, 547659, 678054, 730212, 791063, 1017081, 1095318, 1356108, 1582126, 2034162, 2190636, 2373189, 3164252, 4068324, 4746378, 7119567, 9492756, 14239134, 28478268]

約数ペア:

[(1, 28478268), (2, 14239134), (3, 9492756), (4, 7119567), (6, 4746378), (7, 4068324), (9, 3164252), (12, 2373189), (13, 2190636), (14, 2034162), (18, 1582126), (21, 1356108), (26, 1095318), (28, 1017081), (36, 791063), (39, 730212), (42, 678054), (52, 547659), (63, 452036), (78, 365106), (84, 339027), (91, 312948), (117, 243404), (126, 226018), (156, 182553), (182, 156474), (234, 121702), (252, 113009), (273, 104316), (364, 78237), (468, 60851), (546, 52158), (819, 34772), (1092, 26079), (1638, 17386), (3276, 8693)]